Medium 4.3Published Aug 20, 2026

CVE-2026-53584libgit2: Submodule path traversal

Updated under an hour ago (2026-10-19 06:20 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for libgit2

Exploited in the last 30 days

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, libgit2 does not reject traversal components in a submodule path loaded from .gitmodules. The affected src/libgit2/submodule.c paths include git_submodule_lookup and git_submodule_add_setup. A crafted repository can specify a path such as ../escape-target, and applications that initialize the submodule can create directories outside the repository working tree. This issue is fixed in versions 1.8.6 and 1.9.5.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Aug 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

libgit2 libgit2 libgit2:libgit2 (from the name)	before 1.8.6; from 1.9.0, < 1.9.5	CNA record

References

https://github.com/libgit2/libgit2/security/advisories/GHSA-cw77-j82w-mchmx-refsource-confirm
https://github.com/libgit2/libgit2/commit/419637d3587396f5d139d6d88480eab3cd81e7a1x-refsource-misc
https://github.com/libgit2/libgit2/commit/467c2d95ed663df722f83a5960edf568514b128cx-refsource-misc
https://github.com/libgit2/libgit2/commit/ec7371da9f359cd8293e9108e7a0b1c1b61b67c4x-refsource-misc
https://github.com/libgit2/libgit2/releases/tag/v1.8.6x-refsource-misc
https://github.com/libgit2/libgit2/releases/tag/v1.9.5x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.