{"id":"CVE-2023-22490","title":"Git is a revision control system","summary":"Git is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-59","CWE-59"],"vendor":"git-scm","product":"git","affected":["git < 2.30.8","git >= 2.31.0, < 2.31.7","git >= 2.32.0, < 2.32.6","git >= 2.33.0, < 2.33.7","git >= 2.34.0, < 2.34.7","git >= 2.35.0, < 2.35.7","git >= 2.36.0, < 2.36.5","git >= 2.37.0, < 2.37.6","git >= 2.38.0, < 2.38.4","git >= 2.39.0, < 2.39.2"],"patched":["git 2.39.2"],"published":"2023-02-14","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:17:22.817","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-22490","references":[{"url":"https://github.com/git/git/commit/c867e4fa180bec4750e9b54eb10f459030dbebfd","label":"security-advisories@github.com"},{"url":"https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85","label":"security-advisories@github.com"},{"url":"https://github.com/git/git/security/advisories/GHSA-gw92-x3fm-3g3q","label":"security-advisories@github.com"},{"url":"https://security.gentoo.org/glsa/202312-15","label":"security-advisories@github.com"},{"url":"https://github.com/git/git/commit/c867e4fa180bec4750e9b54eb10f459030dbebfd","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/git/git/security/advisories/GHSA-gw92-x3fm-3g3q","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202312-15","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.0071,"epssPercentile":0.52097,"exploits":{"github":1,"githubRepos":["https://github.com/smash8tap/CVE-2023-22490_PoC"],"checkedAt":"2026-10-08T23:17:21.759Z"},"exploitAvailable":true,"ingestedAt":"2026-10-08T23:16:47.348Z","slug":"CVE-2023-22490","body":"## Overview\n\nGit is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, the `objects` directory itself may still be a symbolic link. These two may be combined to include arbitrary files based on known paths on the victim's filesystem within the malicious repository's working copy, allowing for data exfiltration in a similar manner as CVE-2022-39253.\n\nA fix has been prepared and will appear in v2.39.2 v2.38.4 v2.37.6 v2.36.5 v2.35.7 v2.34.7 v2.33.7 v2.32.6, v2.31.7 and v2.30.8. If upgrading is impractical, two short-term workarounds are available. Avoid cloning repositories from untrusted sources with `--recurse-submodules`. Instead, consider cloning repositories without recursively cloning their submodules, and instead run `git submodule update` at each layer. Before doing so, inspect each new `.gitmodules` file to ensure that it does not contain suspicious module URLs.\n\n## Affected\n\n- `git < 2.30.8`\n- `git >= 2.31.0, < 2.31.7`\n- `git >= 2.32.0, < 2.32.6`\n- `git >= 2.33.0, < 2.33.7`\n- `git >= 2.34.0, < 2.34.7`\n- `git >= 2.35.0, < 2.35.7`\n- `git >= 2.36.0, < 2.36.5`\n- `git >= 2.37.0, < 2.37.6`\n- `git >= 2.38.0, < 2.38.4`\n- `git >= 2.39.0, < 2.39.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `git 2.39.2`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}