{
  "schema_version": "1.7.0",
  "id": "MGASA-2026-0589",
  "published": "2026-11-10T16:31:41Z",
  "modified": "2026-11-10T16:15:37Z",
  "summary": "Updated python-dulwich & rust-similar3 packages fixes security vulnerabilities",
  "details": "Commit subjects not sanitized in ``porcelain.format_patch``\nUnbounded memory allocation in receive-pack from crafted thin packs\nDulwich from 0.22.5 before 1.2.8 contains a path traversal vulnerability\nin stash.py pop() that allows attackers to write arbitrary files outside\nthe worktree through intermediate directory symlinks. Attackers can\ncraft a malicious repository whose popped stash writes a payload into\n.git/hooks/post-checkout, achieving code execution on the next checkout.\nDulwich from 0.23.1 before 1.2.8 contains a path traversal vulnerability\nin CommitFilter._apply_index_filter() that allows attackers to write\nfiles outside the working directory via symlinks persisting between\ncommits. Attackers can craft a repository where an ancestor commit's\nsymlink redirects a descendant commit's file writes during\nfilter_branch, enabling code execution by writing into .git/hooks.\nDulwich before 1.2.9 contains a denial of service vulnerability in\nPack.resolve_object that allows attackers to cause infinite recursion\nvia self-referential OFS_DELTA objects. Attackers can supply a malicious\npackfile with an OFS_DELTA delta_offset of 0 to exhaust CPU during\nclone, fetch, or cat-file operations.\nDulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git\ntree path elements on Windows, allowing arbitrary file write. Attackers\ncan craft a malicious repository with a tree entry named 'C:' that\nbypasses NTFS validation and writes files outside the worktree to\nachieve remote code execution.\nDulwich from 0.24.0 before 1.2.8 contains a symlink following\nvulnerability in porcelain.checkout(paths=[...]) that allows attackers\nto write arbitrary files by abusing raw os.open without O_NOFOLLOW.\nAttackers can craft a repository where a worktree symlink points to\n.git/hooks/post-checkout, so restoring the file from a tag writes a\nmalicious hook for code execution.\n",
  "upstream": [
    "CVE-2026-47712",
    "CVE-2026-47734",
    "CVE-2026-114098",
    "CVE-2026-114097",
    "CVE-2026-114095",
    "CVE-2026-114094",
    "CVE-2026-114096"
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.mageia.org/MGASA-2026-0589.html"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.mageia.org/show_bug.cgi?id=35907"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YORLARHG3RTPSDHI7QFLTZNL67NVZCN7/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-555p-6grf-mh7f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-xrvj-v92f-53gj"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-cm62-gvxx-vmxx"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-5fqc-mrg8-w798"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-35mr-4567-66vg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-8w8g-wq8h-fq33"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Mageia:10",
        "name": "python-dulwich",
        "purl": "pkg:rpm/mageia/python-dulwich?arch=source&distro=mageia-10"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.21-1.1.mga10"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    },
    {
      "package": {
        "ecosystem": "Mageia:10",
        "name": "rust-similar3",
        "purl": "pkg:rpm/mageia/rust-similar3?arch=source&distro=mageia-10"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.1-1.mga10"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    }
  ],
  "credits": [
    {
      "name": "Mageia",
      "type": "COORDINATOR",
      "contact": [
        "https://wiki.mageia.org/en/Packages_Security_Team"
      ]
    }
  ]
}