ubuntu-cve-2026-71557
Vulnerability from osv_ubuntu
Published
2026-08-11 00:00
Modified
2026-08-11 00:00
Summary
Details

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "go-git",
            "binary_version": "5.4.2-3ubuntu0.1~esm2"
          },
          {
            "binary_name": "golang-github-go-git-go-git-dev",
            "binary_version": "5.4.2-3ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "golang-github-go-git-go-git",
        "purl": "pkg:deb/ubuntu/golang-github-go-git-go-git@5.4.2-3ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.2-3",
        "5.4.2-3ubuntu0.1~esm1",
        "5.4.2-3ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "go-git",
            "binary_version": "5.4.2-4ubuntu0.24.04.3+esm3"
          },
          {
            "binary_name": "golang-github-go-git-go-git-dev",
            "binary_version": "5.4.2-4ubuntu0.24.04.3+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "golang-github-go-git-go-git",
        "purl": "pkg:deb/ubuntu/golang-github-go-git-go-git@5.4.2-4ubuntu0.24.04.3+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.2-3build1",
        "5.4.2-4",
        "5.4.2-4ubuntu0.24.04.1",
        "5.4.2-4ubuntu0.24.04.2",
        "5.4.2-4ubuntu0.24.04.2+esm1",
        "5.4.2-4ubuntu0.24.04.3",
        "5.4.2-4ubuntu0.24.04.3+esm1",
        "5.4.2-4ubuntu0.24.04.3+esm2",
        "5.4.2-4ubuntu0.24.04.3+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "go-git",
            "binary_version": "5.16.2-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "golang-github-go-git-go-git-dev",
            "binary_version": "5.16.2-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "golang-github-go-git-go-git",
        "purl": "pkg:deb/ubuntu/golang-github-go-git-go-git@5.16.2-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.14.0-1",
        "5.16.2-1",
        "5.16.2-1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.",
  "id": "UBUNTU-CVE-2026-71557",
  "modified": "2026-08-11T00:00:00Z",
  "published": "2026-08-11T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-71557"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-71557"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/commit/4a0e66d555de5f9a30c31e2df64f445f42bd01e7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/commit/da9f7d8a0e98b475600177348d6ece384a370f36"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/pull/2247"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/pull/2254"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/releases/tag/v5.19.2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/go-git/go-git/security/advisories/GHSA-qgq7-7hm3-q39j"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-71557"
  ]
}



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