RHSA-2026:68808
Vulnerability from csaf_redhat - Published: 2026-09-18 02:38 - Updated: 2026-10-02 18:48Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
syft:
* syft-1.52.0-0.1.hum1 (aarch64, x86_64)
* syft-1.52.0-0.1.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 klauspost/compress package. A remote attacker can exploit this vulnerability by supplying a specially crafted compression dictionary with an excessively large repeat value, triggering an integer overflow. When the dictionary is subsequently processed, this overflow leads to out-of-bounds memory access, crashing the application and resulting in a Denial of Service (DoS).
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in go-git, an extensible Git implementation library. Maliciously crafted reference names, which can contain directory-traversal sequences, are not properly sanitized. This vulnerability allows an attacker to write files outside of the intended reference storage directory, potentially leading to unauthorized file modification or data integrity issues.
6.3 (Medium)
Affected products
Fixed
3 products, the same list as for
CVE-2026-63209
Threats
Impact
Moderate
References
24 references
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"cve": "CVE-2026-63209",
"cwe": {
"id": "CWE-823",
"name": "Use of Out-of-range Pointer Offset"
},
"discovery_date": "2026-09-29T15:12:15.658458+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2543236"
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],
"notes": [
{
"category": "description",
"text": "A flaw was found in the klauspost/compress package. A remote attacker can exploit this vulnerability by supplying a specially crafted compression dictionary with an excessively large repeat value, triggering an integer overflow. When the dictionary is subsequently processed, this overflow leads to out-of-bounds memory access, crashing the application and resulting in a Denial of Service (DoS).",
"title": "Vulnerability description"
},
{
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"text": "github.com/klauspost/compress: klauspost/compress: Denial of Service via integer overflow in dictionary processing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat has rated this vulnerability as having an impact of Important because an unauthenticated remote attacker could trigger a denial of service by causing a process crash without requiring elevated permissions. In Red Hat environments where this Go library is embedded, exploitation requires that an application accepts untrusted dictionary structures for S2 compression and subsequently attempts encoding. Although the resulting memory access fault terminates the vulnerable process, the flaw is confined to process crashes and does not compromise data confidentiality or integrity.",
"title": "Statement"
},
{
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"fixed": [
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@aarch64",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@src",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@x86_64"
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},
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"product_ids": [
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"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@src",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@x86_64"
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"title": "github.com/klauspost/compress: klauspost/compress: Denial of Service via integer overflow in dictionary processing"
},
{
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"cwe": {
"id": "CWE-22",
"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
},
"discovery_date": "2026-08-07T16:50:57.559851+00:00",
"ids": [
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"text": "2512557"
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"notes": [
{
"category": "description",
"text": "A flaw was found in go-git, an extensible Git implementation library. Maliciously crafted reference names, which can contain directory-traversal sequences, are not properly sanitized. This vulnerability allows an attacker to write files outside of the intended reference storage directory, potentially leading to unauthorized file modification or data integrity issues.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "github.com/go-git/go-git: github.com/go-git/go-git/v5: go-git: Unauthorized file modification via directory traversal in reference names",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is a Moderate impact flaw because it requires user interaction and low privileges, but can lead to unauthorized file modification. The `go-git` library, when processing maliciously crafted reference names, fails to sanitize directory traversal sequences, allowing files to be written outside the intended directory. This could affect Red Hat products that utilize `go-git` for repository operations where untrusted input for reference names is processed.",
"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.",
"title": "CVSS score applicability"
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],
"product_status": {
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},
{
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"url": "https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5"
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"url": "https://github.com/go-git/go-git/security/advisories/GHSA-qgq7-7hm3-q39j"
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"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@src",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@x86_64"
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"product_ids": [
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@aarch64",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@src",
"Red Hat Hardened Images:syft-0:1.52.0-0.1.hum1@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "github.com/go-git/go-git: github.com/go-git/go-git/v5: go-git: Unauthorized file modification via directory traversal in reference names"
}
]
}
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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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