CVE-2026-53584
Publication date 31 July 2026
Last updated 2 September 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libgit2 | 26.04 LTS resolute |
Fixed 1.9.1+ds-1ubuntu1.1
|
| 24.04 LTS noble |
Fixed 1.7.2+ds-1ubuntu3.1
|
|
| 22.04 LTS jammy |
Fixed 1.1.0+dfsg.1-4.1ubuntu0.1+esm1
|
|
| 20.04 LTS focal |
Fixed 0.28.4+dfsg.1-2ubuntu0.1+esm1
|
|
| 18.04 LTS bionic | Ignored changes too intrusive | |
| 16.04 LTS xenial | Ignored changes too intrusive | |
| 14.04 LTS trusty | Ignored changes too intrusive |
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CVSS version: CVSS v3.0
Base score
4.3 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8628-1
- libgit2 vulnerabilities
- 12 August 2026