Vulnerability-Lookup

RHSA-2026:60646

Vulnerability from csaf_redhat - Published: 2026-08-27 21:43 - Updated: 2026-09-07 07:07

Summary

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-1.51.1-0.1.hum1 (aarch64, x86_64) * syft-1.51.1-0.1.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.

CVE-2026-71556

A flaw was found in go-git, an extensible Git implementation library. Worktree operations, such as checkout, status, and add, resolve symbolic links within the working tree without proper boundary confinement. This allows a remote attacker to craft a malicious repository containing a symlink, which, when cloned and its worktree operations are used, can lead to reading from or writing to arbitrary files outside the intended working directory. This could result in information disclosure or arbitrary file modification.

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:syft-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:syft-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:syft-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

14 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:60646	self
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-71556	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-71556	self
https://bugzilla.redhat.com/show_bug.cgi?id=2512562	external
https://www.cve.org/CVERecord?id=CVE-2026-71556	external
https://nvd.nist.gov/vuln/detail/CVE-2026-71556	external
https://github.com/go-git/go-git/commit/008a78f2d…	external
https://github.com/go-git/go-git/commit/661d1c7f1…	external
https://github.com/go-git/go-git/releases/tag/v5.19.2	external
https://github.com/go-git/go-git/releases/tag/v6.…	external
https://github.com/go-git/go-git/security/advisor…	external

JSON

To clipboard

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        "category": "general",
        "text": "This update includes the following RPMs:\n\nsyft:\n  * syft-1.51.1-0.1.hum1 (aarch64, x86_64)\n  * syft-1.51.1-0.1.hum1.src (src)",
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        "product_reference": "syft-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-71556",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "discovery_date": "2026-08-07T16:51:14.251077+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2512562"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in go-git, an extensible Git implementation library. Worktree operations, such as checkout, status, and add, resolve symbolic links within the working tree without proper boundary confinement. This allows a remote attacker to craft a malicious repository containing a symlink, which, when cloned and its worktree operations are used, can lead to reading from or writing to arbitrary files outside the intended working directory. This could result in information disclosure or arbitrary file modification.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "github.com/go-git/go-git/v5: go-git: Arbitrary file read/write via symbolic link resolution",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "go-git is a pure-Go implementation of Git. During worktree operations (checkout, status, add), go-git resolves symbolic links without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause a consuming application to read from or write to files outside the intended working directory when that repository is cloned and its worktree operations are used. Exploitation requires the application to clone an attacker-controlled repository and then perform worktree operations against it; applications that only process trusted repositories are not exposed. Red Hat rates the impact of this flaw as Important.",
          "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:syft-main@aarch64",
          "Red Hat Hardened Images:syft-main@src",
          "Red Hat Hardened Images:syft-main@x86_64"
        ]
      },
      "references": [
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          "url": "https://access.redhat.com/security/cve/CVE-2026-71556"
        },
        {
          "category": "external",
          "summary": "RHBZ#2512562",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512562"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-71556",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-71556"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-71556",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71556"
        },
        {
          "category": "external",
          "summary": "https://github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab",
          "url": "https://github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab"
        },
        {
          "category": "external",
          "summary": "https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac",
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        },
        {
          "category": "external",
          "summary": "https://github.com/go-git/go-git/releases/tag/v5.19.2",
          "url": "https://github.com/go-git/go-git/releases/tag/v5.19.2"
        },
        {
          "category": "external",
          "summary": "https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5",
          "url": "https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5"
        },
        {
          "category": "external",
          "summary": "https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm",
          "url": "https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm"
        }
      ],
      "release_date": "2026-08-07T16:37:40.058000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-27T21:43:02+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:syft-main@aarch64",
            "Red Hat Hardened Images:syft-main@src",
            "Red Hat Hardened Images:syft-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:60646"
        },
        {
          "category": "workaround",
          "details": "To reduce the risk of exploitation, do not clone or run worktree operations (checkout, status, add) on Git repositories originating from untrusted or attacker-controllable sources using an affected version of go-git. The issue is resolved by updating to go-git 5.19.2 or 6.0.0-alpha.5 (or later).",
          "product_ids": [
            "Red Hat Hardened Images:syft-main@aarch64",
            "Red Hat Hardened Images:syft-main@src",
            "Red Hat Hardened Images:syft-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:syft-main@aarch64",
            "Red Hat Hardened Images:syft-main@src",
            "Red Hat Hardened Images:syft-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "github.com/go-git/go-git/v5: go-git: Arbitrary file read/write via symbolic link resolution"
    }
  ]
}

CVE-2026-71556 (GCVE-0-2026-71556)

Vulnerability from cvelistv5 – Published: 2026-08-07 16:37 – Updated: 2026-08-07 16:58

Title

go-git: Worktree operations may follow symlinks

Summary

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 16:58 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/go-git/go-git/security/advisor…	x_refsource_CONFIRM
https://github.com/go-git/go-git/commit/008a78f2d…	x_refsource_MISC
https://github.com/go-git/go-git/commit/661d1c7f1…	x_refsource_MISC
https://github.com/go-git/go-git/releases/tag/v5.19.2	x_refsource_MISC
https://github.com/go-git/go-git/releases/tag/v6.…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
go-git	go-git	Affected: < 5.19.2 Affected: >= 6.0.0-alpha.1, < 6.0.0-alpha.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71556",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-07T16:58:08.599214Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2026-08-07T16:58:19.113Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "go-git",
          "vendor": "go-git",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.19.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.0.0-alpha.1, \u003c 6.0.0-alpha.5"
            }
          ]
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          "lang": "en",
          "value": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
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            "version": "3.1"
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
      "references": [
        {
          "name": "https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm",
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          ],
          "url": "https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm"
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          "name": "https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac",
          "tags": [
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          "url": "https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac"
        },
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          "name": "https://github.com/go-git/go-git/releases/tag/v5.19.2",
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          "tags": [
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          "url": "https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5"
        }
      ],
      "source": {
        "advisory": "GHSA-hc8v-wwc9-vgxm",
        "discovery": "UNKNOWN"
      },
      "title": "go-git: Worktree operations may follow symlinks"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

RHSA-2026:60646

CVE-2026-71556 (GCVE-0-2026-71556)

Tags

Sightings

Nomenclature