RHSA-2026:79715
Vulnerability from csaf_redhat - Published: 2026-10-08 23:23 - Updated: 2026-10-09 08:39Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
golang1.27:
* golang1.27-1.27.2-0.1.hum1 (aarch64, x86_64)
* golang1.27-bin-1.27.2-0.1.hum1 (aarch64, x86_64)
* golang1.27-docs-1.27.2-0.1.hum1 (noarch)
* golang1.27-misc-1.27.2-0.1.hum1 (noarch)
* golang1.27-src-1.27.2-0.1.hum1 (noarch)
* golang1.27-tests-1.27.2-0.1.hum1 (noarch)
* golang1.27-1.27.2-0.1.hum1.src (src)
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 Go toolchain (cmd/go). When a user works inside a malicious Go project that defines a bogus golang.org/fips140 module and connects to an untrusted Go module proxy (GOMODPROXY), the proxy can serve an arbitrary replacement module that still passes local verification. This can lead to arbitrary code execution during Go build or module download operations.
6.7 (Medium)
Affected products
Fixed
17 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:golang1.27-0:1.27.2-0.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-0:1.27.2-0.1.hum1@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-0:1.27.2-0.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-bin-0:1.27.2-0.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-bin-0:1.27.2-0.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-docs-0:1.27.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-docs-0:1.27.2-0.1.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-docs-0:1.27.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-misc-0:1.27.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-misc-0:1.27.2-0.1.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-misc-0:1.27.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-src-0:1.27.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-src-0:1.27.2-0.1.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-src-0:1.27.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-tests-0:1.27.2-0.1.hum1@noarch@public-hummingbird-aarch64-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-tests-0:1.27.2-0.1.hum1@noarch@public-hummingbird-s390x-rpms | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:golang1.27-tests-0:1.27.2-0.1.hum1@noarch@public-hummingbird-x86_64-rpms | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in the Go toolchain (cmd/go). When a user works inside a malicious Go project that forges a golang.org/toolchain go.sum entry and uses an untrusted Go module proxy, cmd/go can skip the canonical checksum database check for toolchain downloads. A tampered toolchain may then be downloaded and executed.
6.7 (Medium)
Affected products
Fixed
17 products, the same list as for
CVE-2026-94444
Threats
Impact
Moderate
References
21 references
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-94447"
},
{
"category": "external",
"summary": "RHBZ#2548342",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548342"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-94447",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-94447"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-94447",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94447"
},
{
"category": "external",
"summary": "https://go.dev/cl/840785",
"url": "https://go.dev/cl/840785"
},
{
"category": "external",
"summary": "https://go.dev/issue/81834",
"url": "https://go.dev/issue/81834"
},
{
"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-2026-6602",
"url": "https://pkg.go.dev/vuln/GO-2026-6602"
}
],
"release_date": "2026-10-08T22:53:57.974000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-08T23:23:13+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/",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:79715"
},
{
"category": "workaround",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "cmd/go: golang: cmd/go: Toolchain checksum verification bypass via crafted project configuration"
}
]
}
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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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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.
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