RHSA-2026:90332

Vulnerability from csaf_redhat - Published: 2026-10-26 15:02 - Updated: 2026-10-29 11:34
Summary
Red Hat Security Advisory: RHOSO 18.0 os-diff security update
Severity
Important
Notes
Topic: An update for golang-github-openstack-k8s-operators-os-diff is now available for Red Hat OpenStack Services on OpenShift 18.0 (Antelope). Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Security Fix(es): * golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943) * golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145) * golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) * golang: Golang MIME: Denial of Service via maliciously-crafted MIME header (CVE-2026-42504) * golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) * golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) * golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) * golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862) * golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667) * net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669) * golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031) * golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-27145

A flaw was found in the `crypto/x509` package of `golang`. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by presenting a specially crafted X.509 certificate with a large number of DNS Subject Alternative Name (SAN) entries. The certificate verification process, specifically the `VerifyHostname` function, incurs excessive computational overhead due to repeated string operations when processing these entries. This can lead to a significant performance degradation or unresponsiveness of systems validating such certificates.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-606 - Unchecked Input for Loop Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-33818

A flaw was found in the `encoding/asn1` package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One (ASN.1) structure, leading to excessive recursion during the `Unmarshal` operation. This could result in stack exhaustion and a Denial of Service (DoS) condition.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-42504

A flaw was found in the Golang MIME (Multipurpose Internet Mail Extensions) package. A remote attacker could exploit this vulnerability by sending a maliciously-crafted MIME header containing many invalid encoded-words. This could lead to excessive CPU consumption, resulting in a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1050 - Excessive Platform Resource Consumption within a Loop
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-56853

A flaw was found in the `net/http` component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the `ReadHeaderTimeout` is not correctly applied during this process. This oversight could allow a remote attacker to maintain open connections indefinitely, potentially leading to a Denial of Service (DoS) by exhausting server resources.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-56858

A flaw was found in the `html/template` component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash ('/'), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user's browser, potentially compromising user data or actions.

8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-56860

A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory ('..') segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-56862

A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1050 - Excessive Platform Resource Consumption within a Loop
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-78667

A flaw was found in the Go net/http package. A remote attacker can cause a Denial of Service (DoS) by sending an HTTP request containing a Range header with a large number of small byte ranges. When the server processes these ranges while serving content, it consumes an excessive amount of CPU resources, rendering the application unresponsive to legitimate users.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-78669

A flaw was found in the Go net/http package. This flaw allows a remote attacker to cause a Denial of Service (DoS) by triggering excessive CPU consumption on an affected client or server. By opening a large number of HTTP/2 streams and repeatedly sending small configuration (SETTINGS) frames that modify window sizes, an attacker forces the system into intensive state processing. This resource exhaustion degrades performance and can render the service unresponsive.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-94440

A flaw was found in the mime/multipart and net/textproto packages in Go. A remote attacker could exploit this vulnerability by submitting a crafted multipart form request that bypasses configured memory limits when the remaining boundary limit is small. This issue allows the application to read an arbitrarily long line into memory, leading to excessive resource consumption and a Denial of Service (DoS).

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Moderate
CVE-2026-97031

A flaw was found in crypto/tls. A remote attacker can trigger this vulnerability by sending a specially crafted packet containing multiple Encrypted Client Hello (ECH) outer extension references to a server. Processing these unauthorized references leads to excessive memory consumption, causing a Denial of Service (DoS) through server crashes or unresponsiveness.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
CVE-2026-111943

A flaw was found in Go's crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.

6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Fixed 4 products, the same list as for CVE-2026-27145
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:90332 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2484204 external
https://bugzilla.redhat.com/show_bug.cgi?id=2484207 external
https://bugzilla.redhat.com/show_bug.cgi?id=2515815 external
https://bugzilla.redhat.com/show_bug.cgi?id=2515820 external
https://bugzilla.redhat.com/show_bug.cgi?id=2515827 external
https://bugzilla.redhat.com/show_bug.cgi?id=2515838 external
https://bugzilla.redhat.com/show_bug.cgi?id=2515839 external
https://bugzilla.redhat.com/show_bug.cgi?id=2548334 external
https://bugzilla.redhat.com/show_bug.cgi?id=2548336 external
https://bugzilla.redhat.com/show_bug.cgi?id=2548341 external
https://bugzilla.redhat.com/show_bug.cgi?id=2548344 external
https://bugzilla.redhat.com/show_bug.cgi?id=2556068 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-27145 self
https://bugzilla.redhat.com/show_bug.cgi?id=2484207 external
https://www.cve.org/CVERecord?id=CVE-2026-27145 external
https://nvd.nist.gov/vuln/detail/CVE-2026-27145 external
https://go.dev/cl/783621 external
https://go.dev/issue/79694 external
https://groups.google.com/g/golang-announce/c/tKs… external
https://pkg.go.dev/vuln/GO-2026-5037 external
https://access.redhat.com/security/cve/CVE-2026-33818 self
https://bugzilla.redhat.com/show_bug.cgi?id=2515815 external
https://www.cve.org/CVERecord?id=CVE-2026-33818 external
https://nvd.nist.gov/vuln/detail/CVE-2026-33818 external
https://go.dev/cl/814980 external
https://go.dev/issue/80405 external
https://groups.google.com/g/golang-announce/c/94p… external
https://pkg.go.dev/vuln/GO-2026-5972 external
https://access.redhat.com/security/cve/CVE-2026-42504 self
https://bugzilla.redhat.com/show_bug.cgi?id=2484204 external
https://www.cve.org/CVERecord?id=CVE-2026-42504 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42504 external
https://go.dev/cl/774481 external
https://go.dev/issue/79217 external
https://pkg.go.dev/vuln/GO-2026-5038 external
https://access.redhat.com/security/cve/CVE-2026-56853 self
https://bugzilla.redhat.com/show_bug.cgi?id=2515827 external
https://www.cve.org/CVERecord?id=CVE-2026-56853 external
https://nvd.nist.gov/vuln/detail/CVE-2026-56853 external
https://go.dev/cl/795540 external
https://go.dev/issue/80205 external
https://pkg.go.dev/vuln/GO-2026-6089 external
https://access.redhat.com/security/cve/CVE-2026-56858 self
https://bugzilla.redhat.com/show_bug.cgi?id=2515838 external
https://www.cve.org/CVERecord?id=CVE-2026-56858 external
https://nvd.nist.gov/vuln/detail/CVE-2026-56858 external
https://go.dev/cl/807100 external
https://go.dev/issue/80435 external
https://pkg.go.dev/vuln/GO-2026-6091 external
https://access.redhat.com/security/cve/CVE-2026-56860 self
https://bugzilla.redhat.com/show_bug.cgi?id=2515820 external
https://www.cve.org/CVERecord?id=CVE-2026-56860 external
https://nvd.nist.gov/vuln/detail/CVE-2026-56860 external
https://go.dev/cl/803681 external
https://go.dev/issue/80494 external
https://pkg.go.dev/vuln/GO-2026-6218 external
https://access.redhat.com/security/cve/CVE-2026-56862 self
https://bugzilla.redhat.com/show_bug.cgi?id=2515839 external
https://www.cve.org/CVERecord?id=CVE-2026-56862 external
https://nvd.nist.gov/vuln/detail/CVE-2026-56862 external
https://go.dev/cl/804261 external
https://go.dev/issue/80528 external
https://pkg.go.dev/vuln/GO-2026-6090 external
https://access.redhat.com/security/cve/CVE-2026-78667 self
https://bugzilla.redhat.com/show_bug.cgi?id=2548334 external
https://www.cve.org/CVERecord?id=CVE-2026-78667 external
https://nvd.nist.gov/vuln/detail/CVE-2026-78667 external
https://go.dev/cl/847309 external
https://go.dev/issue/81858 external
https://groups.google.com/g/golang-announce/c/U2f… external
https://pkg.go.dev/vuln/GO-2026-6609 external
https://access.redhat.com/security/cve/CVE-2026-78669 self
https://bugzilla.redhat.com/show_bug.cgi?id=2548344 external
https://www.cve.org/CVERecord?id=CVE-2026-78669 external
https://nvd.nist.gov/vuln/detail/CVE-2026-78669 external
https://go.dev/cl/847186 external
https://go.dev/cl/847308 external
https://go.dev/issue/81742 external
https://groups.google.com/g/golang-announce/c/ZPw… external
https://pkg.go.dev/vuln/GO-2026-6611 external
https://access.redhat.com/security/cve/CVE-2026-94440 self
https://bugzilla.redhat.com/show_bug.cgi?id=2548341 external
https://www.cve.org/CVERecord?id=CVE-2026-94440 external
https://nvd.nist.gov/vuln/detail/CVE-2026-94440 external
https://go.dev/cl/847307 external
https://go.dev/issue/81741 external
https://pkg.go.dev/vuln/GO-2026-6608 external
https://access.redhat.com/security/cve/CVE-2026-97031 self
https://bugzilla.redhat.com/show_bug.cgi?id=2548336 external
https://www.cve.org/CVERecord?id=CVE-2026-97031 external
https://nvd.nist.gov/vuln/detail/CVE-2026-97031 external
https://go.dev/cl/847312 external
https://go.dev/issue/81855 external
https://pkg.go.dev/vuln/GO-2026-6607 external
https://access.redhat.com/security/cve/CVE-2026-111943 self
https://bugzilla.redhat.com/show_bug.cgi?id=2556068 external
https://access.redhat.com/security/vulnerabilitie… external
https://www.cve.org/CVERecord?id=CVE-2026-111943 external
https://nvd.nist.gov/vuln/detail/CVE-2026-111943 external
https://github.com/golang/go/issues/82345 external
https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU external
https://pkg.go.dev/vuln/GO-2026-6809 external
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          "text": "A flaw was found in the `crypto/x509` package of `golang`. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by presenting a specially crafted X.509 certificate with a large number of DNS Subject Alternative Name (SAN) entries. The certificate verification process, specifically the `VerifyHostname` function, incurs excessive computational overhead due to repeated string operations when processing these entries. This can lead to a significant performance degradation or unresponsiveness of systems validating such certificates.",
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          "title": "Vulnerability summary"
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          "text": "A flaw was found in the Go standard library crypto/x509 package. When verifying a TLS certificate hostname, VerifyHostname processed each DNS Subject Alternative Name (SAN) entry in a loop and repeatedly split the candidate hostname on \".\" characters. For certificates with a very large DNS SAN list, CPU use could grow quadratically with the number of SAN entries and hostname labels. Because hostname verification runs before the certificate chain is built, this overhead can occur even when the certificate is not trusted.\n\nRed Hat rates this issue as Important. It affects Red Hat products that include the Go standard library crypto/x509 code from an affected Go toolchain version (before Go 1.25.11, or from Go 1.26.0 through Go 1.26.3). Applications and container images built with a fixed Go release (1.25.11 or later, or 1.26.4 or later) are not affected. Community distributions such as Fedora are also affected.\n\nUpstream fix: Go 1.25.11 and Go 1.26.4 (GO-2026-5037).",
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        {
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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        "name": "Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)"
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          "title": "Statement"
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "text": "A flaw was found in the Golang MIME (Multipurpose Internet Mail Extensions) package. A remote attacker could exploit this vulnerability by sending a maliciously-crafted MIME header containing many invalid encoded-words. This could lead to excessive CPU consumption, resulting in a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
        },
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          "category": "other",
          "text": "This is rated as an Important severity flaw. A remote attacker could trigger a Denial of Service by sending a crafted MIME header with numerous invalid encoded-words to an application utilizing the affected Golang MIME package. This could lead to excessive CPU consumption on the system processing the malformed header, impacting service availability.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-42504"
        },
        {
          "category": "external",
          "summary": "RHBZ#2484204",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484204"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42504",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42504"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42504",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42504"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/774481",
          "url": "https://go.dev/cl/774481"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/79217",
          "url": "https://go.dev/issue/79217"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw",
          "url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-5038",
          "url": "https://pkg.go.dev/vuln/GO-2026-5038"
        }
      ],
      "release_date": "2026-06-02T22:01:37.219000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, restrict network access to services that process MIME headers from untrusted sources. Implement input validation and sanitization for all incoming data, especially MIME headers, to prevent maliciously crafted content from being processed by applications utilizing the vulnerable Golang MIME package.",
          "product_ids": [
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            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header"
    },
    {
      "cve": "CVE-2026-56853",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-08-13T22:14:53.561638+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2515827"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the `net/http` component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the `ReadHeaderTimeout` is not correctly applied during this process. This oversight could allow a remote attacker to maintain open connections indefinitely, potentially leading to a Denial of Service (DoS) by exhausting server resources.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Important: Unencrypted HTTP/2 servers are susceptible to a denial of service due to improper handling of ReadHeaderTimeout during the client preface reading phase. This can lead to resource exhaustion and service unavailability in affected Red Hat products configured to support unencrypted HTTP/2.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-56853"
        },
        {
          "category": "external",
          "summary": "RHBZ#2515827",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515827"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-56853",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-56853"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56853",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56853"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/795540",
          "url": "https://go.dev/cl/795540"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/80205",
          "url": "https://go.dev/issue/80205"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6089",
          "url": "https://pkg.go.dev/vuln/GO-2026-6089"
        }
      ],
      "release_date": "2026-08-13T21:58:53.092000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service"
    },
    {
      "cve": "CVE-2026-56858",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "discovery_date": "2026-08-13T22:16:32.034590+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2515838"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the `html/template` component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash (\u0027/\u0027), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user\u0027s browser, potentially compromising user data or actions.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "html/template: golang: Go html/template: Cross-Site Scripting via pathological input",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important cross-site scripting (XSS) vulnerability in the Go `html/template` package. Applications utilizing this package to render untrusted input are susceptible to arbitrary content injection due to a flaw in how pathological inputs are handled, potentially leading to client-side script execution.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-56858"
        },
        {
          "category": "external",
          "summary": "RHBZ#2515838",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515838"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-56858",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-56858"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56858",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56858"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/807100",
          "url": "https://go.dev/cl/807100"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/80435",
          "url": "https://go.dev/issue/80435"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6091",
          "url": "https://pkg.go.dev/vuln/GO-2026-6091"
        }
      ],
      "release_date": "2026-08-13T21:58:53.354000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "html/template: golang: Go html/template: Cross-Site Scripting via pathological input"
    },
    {
      "cve": "CVE-2026-56860",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-08-13T22:13:18.319384+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2515820"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory (\u0027..\u0027) segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important denial of service flaw in the Go `net/url` package. Applications built with Go that process untrusted URLs containing parent directory segments (\u0027..\u0027) may be vulnerable to excessive resource consumption due to quadratic time complexity in path resolution. This can lead to a denial of service, impacting the availability of affected services.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
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        },
        {
          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515820"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-56860",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-56860"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56860",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56860"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/803681",
          "url": "https://go.dev/cl/803681"
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          "summary": "https://go.dev/issue/80494",
          "url": "https://go.dev/issue/80494"
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          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6218",
          "url": "https://pkg.go.dev/vuln/GO-2026-6218"
        }
      ],
      "release_date": "2026-08-13T21:58:53.731000+00:00",
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          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
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          "restart_required": {
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          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution"
    },
    {
      "cve": "CVE-2026-56862",
      "cwe": {
        "id": "CWE-1050",
        "name": "Excessive Platform Resource Consumption within a Loop"
      },
      "discovery_date": "2026-08-13T22:16:41.928450+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2515839"
        }
      ],
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        {
          "category": "description",
          "text": "A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important denial of service vulnerability in the `golang` `crypto/tls` package. A remote, unauthenticated attacker can exploit this flaw by continuously sending `KeyUpdate` messages during a TLS handshake, forcing the server to perform indefinite key derivation operations. This resource exhaustion can lead to a denial of service for applications and services in Red Hat products that use the affected `crypto/tls` library and are exposed to untrusted network clients.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
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        },
        {
          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515839"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-56862",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-56862"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56862",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56862"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/804261",
          "url": "https://go.dev/cl/804261"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/80528",
          "url": "https://go.dev/issue/80528"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6090",
          "url": "https://pkg.go.dev/vuln/GO-2026-6090"
        }
      ],
      "release_date": "2026-08-13T21:58:53.216000+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
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        }
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        {
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            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "details": "Important"
        }
      ],
      "title": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages"
    },
    {
      "cve": "CVE-2026-78667",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-10-08T23:00:51.418048+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2548334"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Go net/http package. A remote attacker can cause a Denial of Service (DoS) by sending an HTTP request containing a Range header with a large number of small byte ranges. When the server processes these ranges while serving content, it consumes an excessive amount of CPU resources, rendering the application unresponsive to legitimate users.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/http: golang: golang: Denial of Service via crafted HTTP Range headers",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated with an Important severity for Red Hat products because an unauthenticated remote attacker can exhaust server compute resources over the network, leading to a complete service outage. Across Red Hat enterprise environments, Go is widely deployed in container runtimes, monitoring daemons, and OpenShift infrastructure components. However, exploitation is restricted to applications that actively listen on the network and serve content using standard library HTTP handlers that process multi-range requests. CLI utilities and server components that do not handle byte-range requests from untrusted clients remain unaffected.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-78667"
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        },
        {
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        },
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        },
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          "category": "external",
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          "summary": "https://go.dev/issue/81858",
          "url": "https://go.dev/issue/81858"
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          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI",
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        },
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          "summary": "https://pkg.go.dev/vuln/GO-2026-6609",
          "url": "https://pkg.go.dev/vuln/GO-2026-6609"
        }
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          ]
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          "details": "Important"
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      ],
      "title": "net/http: golang: golang: Denial of Service via crafted HTTP Range headers"
    },
    {
      "cve": "CVE-2026-78669",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-10-08T23:01:28.964317+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2548344"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Go net/http package. This flaw allows a remote attacker to cause a Denial of Service (DoS) by triggering excessive CPU consumption on an affected client or server. By opening a large number of HTTP/2 streams and repeatedly sending small configuration (SETTINGS) frames that modify window sizes, an attacker forces the system into intensive state processing. This resource exhaustion degrades performance and can render the service unresponsive.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A flaw was found in the Go net/http package and the golang.org/x/net/http2 module. A malicious HTTP/2 peer can cause excessive CPU consumption by opening a large number of HTTP/2 streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values. Each SETTINGS frame forces the server or client to iterate over all open streams to adjust their flow-control windows, resulting in quadratic CPU usage and denial of service.\n\nThis vulnerability affects all Go programs that serve or consume HTTP/2 traffic using net/http or golang.org/x/net/http2.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-78669",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-78669"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-78669",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78669"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/847186",
          "url": "https://go.dev/cl/847186"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/847308",
          "url": "https://go.dev/cl/847308"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/81742",
          "url": "https://go.dev/issue/81742"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI",
          "url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs",
          "url": "https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6611",
          "url": "https://pkg.go.dev/vuln/GO-2026-6611"
        }
      ],
      "release_date": "2026-10-08T22:53:59.530000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        },
        {
          "category": "workaround",
          "details": "In case you consume HTTP2, upgrade to a patched version of the http module.\n\nVerify:\n```\ngo version\ngo list -m golang.org/x/net\ngovulncheck ./...\n```",
          "product_ids": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames"
    },
    {
      "cve": "CVE-2026-94440",
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        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-10-08T23:01:17.316758+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2548341"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the mime/multipart and net/textproto packages in Go. A remote attacker could exploit this vulnerability by submitting a crafted multipart form request that bypasses configured memory limits when the remaining boundary limit is small. This issue allows the application to read an arbitrarily long line into memory, leading to excessive resource consumption and a Denial of Service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-94440"
        },
        {
          "category": "external",
          "summary": "RHBZ#2548341",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548341"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-94440",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-94440"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-94440",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94440"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/847307",
          "url": "https://go.dev/cl/847307"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/81741",
          "url": "https://go.dev/issue/81741"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI",
          "url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6608",
          "url": "https://pkg.go.dev/vuln/GO-2026-6608"
        }
      ],
      "release_date": "2026-10-08T22:53:58.959000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing"
    },
    {
      "cve": "CVE-2026-97031",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-10-08T23:00:59.284728+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2548336"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in crypto/tls. A remote attacker can trigger this vulnerability by sending a specially crafted packet containing multiple Encrypted Client Hello (ECH) outer extension references to a server. Processing these unauthorized references leads to excessive memory consumption, causing a Denial of Service (DoS) through server crashes or unresponsiveness.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated as an Important severity flaw because an unauthenticated remote attacker can trigger memory exhaustion and crash server processes without requiring privileges or user interaction. Go applications that terminate TLS connections and accept Encrypted Client Hello configurations are vulnerable to resource amplification during the initial handshake. While the flaw does not facilitate arbitrary code execution or compromise data confidentiality, the resulting denial of service can disrupt critical network services.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
          "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
          "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
          "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-97031"
        },
        {
          "category": "external",
          "summary": "RHBZ#2548336",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548336"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-97031",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-97031"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-97031",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97031"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/847312",
          "url": "https://go.dev/cl/847312"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/81855",
          "url": "https://go.dev/issue/81855"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI",
          "url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6607",
          "url": "https://pkg.go.dev/vuln/GO-2026-6607"
        }
      ],
      "release_date": "2026-10-08T22:53:58.775000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
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          ]
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references"
    },
    {
      "cve": "CVE-2026-111943",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-10-20T09:38:36.160000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2556068"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Go\u0027s crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated Important because Go applications validating TLS certificates could accept unauthorized certificates issued by distrusted intermediate Certificate Authorities, potentially compromising the integrity and confidentiality of secure network communications. Any Go-based client or server relying on standard certificate verification may be exposed to man-in-the-middle attacks if an attacker intercepts traffic using certificates derived from these intermediate keys. Exploitation requires specific network positioning and certificates generated by the untrusted intermediate authorities, limiting opportunistic widespread abuse.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
          "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "RHBZ#2556068",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2556068"
        },
        {
          "category": "external",
          "summary": "RHSB-2026-012",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-012"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-111943",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111943"
        },
        {
          "category": "external",
          "summary": "https://github.com/golang/go/issues/82345",
          "url": "https://github.com/golang/go/issues/82345"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU",
          "url": "https://groups.google.com/g/golang-nuts/c/K22sG2AYnKU"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-6809",
          "url": "https://pkg.go.dev/vuln/GO-2026-6809"
        }
      ],
      "release_date": "2026-10-20T02:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T15:02:31+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, see \u201cUpdating your environment to the latest maintenance release\u201d at\nhttps://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/updating_your_environment_to_the_latest_maintenance_release/index",
          "product_ids": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:90332"
        },
        {
          "category": "workaround",
          "details": "See the security bulletin for a detailed mitigation procedure.",
          "product_ids": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-18.0:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.src",
            "9Base-RHOSO-TOOLS-18:golang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20261021172337.a95ae05.el9ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates"
    }
  ]
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.