---
cve: "CVE-2026-53584"
severity: "MEDIUM"
cvss: 4.3
epss: "0.3%"
vendor: "libgit2"
kev: false
exploited: false
published: "2026-08-20 19:16:54"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T00:28:13+02:00"
---

# CVE-2026-53584

> 4.3 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 5853918c4c6a7b12f8becf4bd11ff4362ebb9020 (Commit)
- f7a4071c766ceea3915415e22134cbe3e581c420 (Commit)

## Referenzen

- <https://github.com/libgit2/libgit2/security/advisories/GHSA-cw77-j82w-mchm>
- <https://github.com/libgit2/libgit2/commit/419637d3587396f5d139d6d88480eab3cd81e7a1>
- <https://github.com/libgit2/libgit2/commit/467c2d95ed663df722f83a5960edf568514b128c>
- <https://github.com/libgit2/libgit2/commit/ec7371da9f359cd8293e9108e7a0b1c1b61b67c4>
- <https://github.com/libgit2/libgit2/releases/tag/v1.8.6>
- <https://github.com/libgit2/libgit2/releases/tag/v1.9.5>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53584) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_