RHSA-2026:37577
Vulnerability from csaf_redhat - Published: 2026-07-10 05:14 - Updated: 2026-07-15 15:00Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
dotnet8.0:
* aspnetcore-runtime-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* aspnetcore-runtime-dbg-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* aspnetcore-targeting-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-apphost-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-hostfxr-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-runtime-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-runtime-dbg-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-sdk-8.0-8.0.128-1.1.hum1 (aarch64, x86_64)
* dotnet-sdk-8.0-source-built-artifacts-8.0.128-1.1.hum1 (aarch64, x86_64)
* dotnet-sdk-dbg-8.0-8.0.128-1.1.hum1 (aarch64, x86_64)
* dotnet-targeting-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64)
* dotnet-templates-8.0-8.0.128-1.1.hum1 (aarch64, x86_64)
* dotnet8.0-8.0.128-1.1.hum1.src (src)
Security Fix(es):
dotnet8.0:
* CVE-2026-59725
* CVE-2026-59869
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 `decompress` component. An improper path containment check allows a local attacker to perform directory traversal. This vulnerability, when combined with unvalidated symlink creation, enables an attacker to write arbitrary files to directories outside the intended extraction target. This issue bypasses a previous fix for CVE-2020-12265.
6.2 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP response from being properly closed, which can lead to the exhaustion of server-side connections and sockets. The primary consequence is a Denial of Service (DoS), making the affected service unavailable to legitimate users.
7.5 (High)
Affected products
Fixed
3 products
Threats
Impact
Important
A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
33 references
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"cwe": {
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"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
},
"discovery_date": "2026-07-09T22:01:41.172349+00:00",
"ids": [
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"text": "2498814"
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"notes": [
{
"category": "description",
"text": "A flaw was found in the `decompress` component. An improper path containment check allows a local attacker to perform directory traversal. This vulnerability, when combined with unvalidated symlink creation, enables an attacker to write arbitrary files to directories outside the intended extraction target. This issue bypasses a previous fix for CVE-2020-12265.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "decompress: decompress: path traversal via indexOf containment bypass allows arbitrary file write (bypass of CVE-2020-12265 fix)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat\u0027s assessment aligns with the CVSSv3.1 base score of 6.2 (Moderate) published by CVE.org/CISA for this issue. The vulnerable safeMakeDir/indexOf path-containment check described in this CVE exists only in decompress 4.2.1, the final release that addressed the earlier CVE-2020-12265 path traversal issue. The decompress npm package is no longer maintained upstream and no 4.2.2 release was ever published, despite the CVE description referring to a fix in that version. Some Red Hat products bundle much older decompress releases (0.2.5, 3.0.0) that predate this code path entirely and are not affected by this specific issue.",
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"title": "CVSS score applicability"
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"Red Hat Hardened Images:dotnet8-0-main@aarch64",
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{
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"url": "https://github.com/kevva/decompress"
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{
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"date": "2026-07-10T05:14:22+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
],
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"url": "https://access.redhat.com/errata/RHSA-2026:37577"
},
{
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"details": "No upstream fix is available. The decompress package is unmaintained and no 4.2.2 release was ever published. Applications should avoid extracting untrusted archives with decompress 4.2.1, or migrate to a maintained fork such as @xhmikosr/decompress.",
"product_ids": [
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}
],
"scores": [
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"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "decompress: decompress: path traversal via indexOf containment bypass allows arbitrary file write (bypass of CVE-2020-12265 fix)"
},
{
"cve": "CVE-2026-59725",
"cwe": {
"id": "CWE-772",
"name": "Missing Release of Resource after Effective Lifetime"
},
"discovery_date": "2026-07-08T16:01:21.270461+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2498118"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP response from being properly closed, which can lead to the exhaustion of server-side connections and sockets. The primary consequence is a Denial of Service (DoS), making the affected service unavailable to legitimate users.",
"title": "Vulnerability description"
},
{
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"text": "socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw has been rated as Important. An unauthenticated remote attacker can exploit a vulnerability in the Engine.IO protocol v4 polling transport of Socket.IO by sending malformed binary POST requests. This can lead to server-side connection exhaustion and a denial of service, impacting the availability of applications utilizing Socket.IO.",
"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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"url": "https://access.redhat.com/security/cve/CVE-2026-59725"
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59725"
},
{
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"summary": "https://github.com/socketio/socket.io/commit/fc11285e14964c2132d122164bf130c355f60671",
"url": "https://github.com/socketio/socket.io/commit/fc11285e14964c2132d122164bf130c355f60671"
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{
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"summary": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7",
"url": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7"
},
{
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}
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"release_date": "2026-07-08T15:37:52.293000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-10T05:14:22+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
],
"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2026:37577"
}
],
"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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"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests"
},
{
"cve": "CVE-2026-59869",
"cwe": {
"id": "CWE-606",
"name": "Unchecked Input for Loop Condition"
},
"discovery_date": "2026-07-08T16:01:38.408322+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2498122"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "js-yaml: js-yaml: Denial of Service via crafted YAML documents",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as Important. Red Hat products utilizing `js-yaml` to process untrusted YAML input are susceptible to a denial of service, as a remote attacker can provide a crafted document that consumes excessive CPU resources. This is considered Important due to the potential for service disruption without requiring authentication or complex attack vectors.",
"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": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-59869"
},
{
"category": "external",
"summary": "RHBZ#2498122",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498122"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-59869",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-59869"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7",
"url": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4",
"url": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0",
"url": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0",
"url": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0"
},
{
"category": "external",
"summary": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m",
"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m"
}
],
"release_date": "2026-07-08T15:15:54.675000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-10T05:14:22+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:37577"
},
{
"category": "workaround",
"details": "To reduce exposure, restrict the processing of untrusted YAML documents by applications that rely on `js-yaml`. Implement robust input validation and sanitization for all YAML data originating from external or untrusted sources. Consider limiting network access to services that parse YAML content to trusted networks or clients through appropriate firewall configurations.",
"product_ids": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@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": [
"Red Hat Hardened Images:dotnet8-0-main@aarch64",
"Red Hat Hardened Images:dotnet8-0-main@src",
"Red Hat Hardened Images:dotnet8-0-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "js-yaml: js-yaml: Denial of Service via crafted YAML documents"
}
]
}
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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.
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