BREW-GIT-CVE-2021-40330 (CVE-2021-40330)

Vulnerability from osv_homebrew – Published: 2026-10-15 03:31 – Updated: 2026-10-15 03:31 – Source website
VLAI
Details

git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2.30.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "git",
        "purl": "pkg:brew/git"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.6.3.1"
            },
            {
              "fixed": "2.30.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/git/git",
        "name": "https://github.com/git/git",
        "strategy": "git",
        "subject_version": "2.56.0"
      },
      {
        "ecosystem": "Debian",
        "key": "Debian/git",
        "name": "git",
        "strategy": "distro"
      },
      {
        "ecosystem": "GIT",
        "key": "upstream:https://github.com/git/git",
        "name": "https://github.com/git/git",
        "strategy": "distro",
        "subject_version": "2.56.0"
      },
      {
        "ecosystem": "Ubuntu",
        "key": "Ubuntu/git",
        "name": "git",
        "strategy": "distro"
      }
    ]
  },
  "details": "git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.",
  "id": "BREW-git-CVE-2021-40330",
  "modified": "2026-10-15T03:31:21Z",
  "published": "2026-10-15T03:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00014.html"
    },
    {
      "type": "FIX",
      "url": "https://github.com/git/git/commit/a02ea577174ab8ed18f847cf1693f213e0b9c473"
    },
    {
      "type": "FIX",
      "url": "https://github.com/git/git/compare/v2.30.0...v2.30.1"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2021-40330"
  ]
}



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