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TI-2022-18629 Aliases CVE-2022-39253

Git subject to exposure of sensitive information via local clone of symbolic links

Priority LOW 28CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 3 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

Git is an open source, scalable, distributed revision control system. Versions prior to 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 are subject to exposure of sensitive information to a malicious actor. When performing a local clone (where the source and target of the clone are on the same volume), Git copies the contents of the source's `$GIT_DIR/objects` directory into the destination by either creating hardlinks to the source contents, or copying them (if hardlinks are disabled via `--no-hardlinks`). A malicious actor could convince a victim to clone a repository with a symbolic link pointing at sensitive information on the victim's machine. This can be done either by having the victim clone a malicious repository on the same machine, or having them clone a malicious repository embedded as a bare repository via a submodule from any source, provided they clone with the `--recurse-submodules` option. Git does not create symbolic links in the `$GIT_DIR/objects` directory. The problem has been patched in the versions published on 2022-10-18, and backported to v2.30.x. Potential workarounds: Avoid cloning untrusted repositories using the `--local` optimization when on a shared machine, either by passing the `--no-local` option to `git clone` or cloning from a URL that uses the `file://` scheme. Alternatively, avoid cloning repositories from untrusted sources with `--recurse-submodules` or run `git config --global protocol.file.allow user`.

Why it matters now

EPSS 0.01481 74th percentileScored 2026-11-07
Fix Partial git (git): 2.30.6, 2.31.5, 2.32.4 +5Red Hat: 3 advisoriesRed Hat: 3 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Gitgitbefore 2.30.6; before 2.31.5; before 2.32.4; before 2.33.5; before 2.34.5; before 2.35.5; before 2.36.3; before 2.37.42.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, 2.37.4Patch availableCNA
  • git VendorGit Affected before 2.30.6; before 2.31.5; before 2.32.4; before 2.33.5; before 2.34.5; before 2.35.5; before 2.36.3; before 2.37.4 Fixed in 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, 2.37.4 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*before 2.30.6; 2.31.0 to before 2.31.5; 2.32.0 to before 2.32.4; 2.33.0 to before 2.33.5; 2.34.0 to before 2.34.5; 2.35.0 to before 2.35.5; 2.36.0 to before 2.36.3; 2.37.0 to before 2.37.4VulnerableGit-scm
cpe:2.3:a:git-scm:git:2.38.0:*:*:*:*:*:*:*2.38.0VulnerableGit-scm
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*37VulnerableFedoraproject
cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*before 14.1VulnerableApple
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:* Versions before 2.30.6; 2.31.0 to before 2.31.5; 2.32.0 to before 2.32.4; 2.33.0 to before 2.33.5; 2.34.0 to before 2.34.5; 2.35.0 to before 2.35.5; 2.36.0 to before 2.36.3; 2.37.0 to before 2.37.4 Vulnerable ·Git-scm
  • cpe:2.3:a:git-scm:git:2.38.0:*:*:*:*:*:*:* Versions 2.38.0 Vulnerable ·Git-scm
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
  • cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:* Versions before 14.1 Vulnerable ·Apple
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

  • Fix · CNA git (git) Fixed in 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, 2.37.4

Red Hat 3 advisories

  • RHSA-2024:0407 Released 2024-01-25 · Red Hat rating Moderate
    git security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) git-2.31.8-1.el8_6, git-all-2.31.8-1.el8_6, git-core-2.31.8-1.el8_6 +12
  • RHSA-2023:2859 Released 2023-05-16 · Red Hat rating Moderate
    git security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 8) git-2.39.1-1.el8, git-all-2.39.1-1.el8, git-core-2.39.1-1.el8 +12
  • RHSA-2023:2319 Released 2023-05-09 · Red Hat rating Moderate
    git security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 9) git-2.39.1-1.el9, git-all-2.39.1-1.el9, git-core-2.39.1-1.el9 +12

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    git — FEDORA-2022-fb088df94c

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-18636 Git vulnerable to Remote Code Execution via Heap overflow in `git shell`Priority MEDIUM 45
    Show all 2 records → Advisory →
  • Advisory ·

    git — FEDORA-2022-53aadd995f

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-18636 Git vulnerable to Remote Code Execution via Heap overflow in `git shell`Priority MEDIUM 45
    Show all 2 records → Advisory →
Show 1 more group
  • Advisory ·

    git — FEDORA-2022-8b58806840

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2022-18636 Git vulnerable to Remote Code Execution via Heap overflow in `git shell`Priority MEDIUM 45
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:2859
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2319
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2024:0407

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-39253

References

Advisory 11

Other 1

  • TI-2025-30709 Git allows arbitrary code execution through broken config quoting KEVCVSS 3.1HIGH 8.1
  • TI-2022-07580 gitattributes parsing integer overflow in git CVSS 3.1CRITICAL 9.8
  • TI-2022-20244 Integer overflow in `git archive`, `git log --format` leading to RCE in git CVSS 3.1CRITICAL 9.8
  • TI-2021-04400 malicious repositories can execute remote code while cloning CVSS 3.1HIGH 8.0
  • TI-2024-21101 Git's recursive clones on case-insensitive filesystems that support symlinks are susceptible to Remote Code Execution CVSS 3.1CRITICAL 9.1
  • TI-2023-10933 "git apply --reject" partially-controlled arbitrary file write CVSS 3.1HIGH 7.5
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences