RHSA-2026:95437
Vulnerability from csaf_redhat - Published: 2026-11-05 07:01 - Updated: 2026-11-07 17:42Summary
Red Hat Security Advisory: LVMS 4.20 Bug Fix and Enhancement update
Severity
Important
Notes
Topic: Updated container images that fix multiple bugs are now available for LVMS 4.20
Details: After a successful LVMS upgrade, the latest lvms-operator SHA image should be running.
This errata bumps golang to address CVE-2026-56860, CVE-2026-56859, CVE-2026-56858, CVE-2026-56862, and CVE-2026-33818 vulnerabilities.
Users of LVMS are advised to upgrade to the latest version in OpenShift Container Platform, which fixes these bugs and adds these enhancements.
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.
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)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:3bf9159857d70a5d50dc7310d67b3e443aafc68a16f18c73b60b27685cf238b9_amd64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:411522d2695f8738f7643347496a18381aeb87bdc71cb2fd5ea151d517774481_ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:9c5b936d9721a119b33dd892168aed7b28b48d8a112d47d2547b0c114fb91573_arm64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:fe1f9a49fa6a1b6296e52cbd0564baaa20d4201f20342080ca496afd7a58d060_s390x | — |
Vendor Fix
fix
Workaround
|
Known not affected
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:0f462456931cac89fce422b123bc0f185f0d660dd432a566f19d585573c09794_amd64 | — |
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:6018a803a027ee60c46446b22a2bb284d684551ed79c6ab869d176a8b7669be5_ppc64le | — |
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:8d1f826911335f464d79293d306af03d75cefc77e49747e01a23966af223d947_s390x | — |
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:c7d0f6a2eb659b252290e62e21d37d91c6cc7170a020ae6df20f10f96d226560_arm64 | — |
Workaround
|
|
| Unresolved product id: Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-operator-bundle@sha256:67c2dce01b9a64fade007751cbd744dc54f1ae2f8307ee47dbb2d3c8582eedab_amd64 | — |
Workaround
|
Threats
Impact
Important
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)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
5 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
A flaw was found in the `encoding/xml` package of Go. The `DecodeElement` function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service (DoS) for the affected application.
7.5 (High)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
5 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
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)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
5 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
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)
Affected products
Fixed
4 products, the same list as for
CVE-2026-33818
Known not affected
5 products, the same list as for
CVE-2026-33818
Threats
Impact
Important
References
44 references
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"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"
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"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"
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"title": "html/template: golang: Go html/template: Cross-Site Scripting via pathological input"
},
{
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"title": "Vulnerability description"
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{
"category": "summary",
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"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"
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},
{
"category": "external",
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},
{
"category": "external",
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{
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},
{
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"title": "Vulnerability description"
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},
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56860"
},
{
"category": "external",
"summary": "RHBZ#2515820",
"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"
},
{
"category": "external",
"summary": "https://go.dev/issue/80494",
"url": "https://go.dev/issue/80494"
},
{
"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",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-11-05T07:01:36+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, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:411522d2695f8738f7643347496a18381aeb87bdc71cb2fd5ea151d517774481_ppc64le",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:95437"
}
],
"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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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:6018a803a027ee60c46446b22a2bb284d684551ed79c6ab869d176a8b7669be5_ppc64le",
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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:411522d2695f8738f7643347496a18381aeb87bdc71cb2fd5ea151d517774481_ppc64le",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:9c5b936d9721a119b33dd892168aed7b28b48d8a112d47d2547b0c114fb91573_arm64",
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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",
"flags": [
{
"label": "vulnerable_code_not_present",
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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-operator-bundle@sha256:67c2dce01b9a64fade007751cbd744dc54f1ae2f8307ee47dbb2d3c8582eedab_amd64"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515839"
}
],
"notes": [
{
"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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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:411522d2695f8738f7643347496a18381aeb87bdc71cb2fd5ea151d517774481_ppc64le",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:9c5b936d9721a119b33dd892168aed7b28b48d8a112d47d2547b0c114fb91573_arm64",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-rhel9-operator@sha256:fe1f9a49fa6a1b6296e52cbd0564baaa20d4201f20342080ca496afd7a58d060_s390x"
],
"known_not_affected": [
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"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:6018a803a027ee60c46446b22a2bb284d684551ed79c6ab869d176a8b7669be5_ppc64le",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:8d1f826911335f464d79293d306af03d75cefc77e49747e01a23966af223d947_s390x",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-must-gather-rhel9@sha256:c7d0f6a2eb659b252290e62e21d37d91c6cc7170a020ae6df20f10f96d226560_arm64",
"Logical Volume Manager Storage 4.20:registry.redhat.io/lvms4/lvms-operator-bundle@sha256:67c2dce01b9a64fade007751cbd744dc54f1ae2f8307ee47dbb2d3c8582eedab_amd64"
]
},
"references": [
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"category": "self",
"summary": "Canonical URL",
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},
{
"category": "external",
"summary": "RHBZ#2515839",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515839"
},
{
"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",
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"title": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages"
}
]
}
Loading…
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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.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.