CVE catalog
CVE-2026-114096
dulwich: CVE-2026-114096
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.15% · Oct 25, 2026
Dulwich from 0.24.0 before 1.2.8 contains a symlink following vulnerability in porcelain.checkout(paths=[...]) that allows attackers to write arbitrary files by abusing raw os.open without O_NOFOLLOW. Attackers can craft a repository where a worktree symlink points to .git/hooks/post-checkout, so restoring the file from a tag writes a malicious hook for code execution.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | dulwich | sid | 1.2.17-1 | fixed |
| Debian | dulwich | forky | 1.2.17-1 | fixed |
| Debian | dulwich | trixie | 0.22.7-1 | vulnerable |
| Debian | dulwich | bookworm | 0.21.2-1 | vulnerable |
| Ubuntu | dulwich | 16.04 | 0.11.2-1ubuntu1 | vulnerable |
| Ubuntu | dulwich | 16.04 | 0.12.0-1 | vulnerable |
| Ubuntu | dulwich | 16.04 | 0.12.0-1build1 | vulnerable |
| Ubuntu | dulwich | 16.04 | 0.12.0-1build2 | vulnerable |
| Ubuntu | dulwich | 18.04 | 0.18.2-1build1 | vulnerable |
| Ubuntu | dulwich | 18.04 | 0.18.5-1 | vulnerable |
| Ubuntu | dulwich | 20.04 | 0.19.11-2 | vulnerable |
| Ubuntu | dulwich | 20.04 | 0.19.14-4ubuntu1 | vulnerable |
| Ubuntu | dulwich | 20.04 | 0.19.15-1 | vulnerable |
| Ubuntu | dulwich | 20.04 | 0.19.15-1build1 | vulnerable |
| Ubuntu | dulwich | 22.04 | 0.20.15-1ubuntu1 | vulnerable |
| Ubuntu | dulwich | 22.04 | 0.20.31-1ubuntu1 | vulnerable |
| Ubuntu | dulwich | 22.04 | 0.20.31-1.1 | vulnerable |
| Ubuntu | dulwich | 22.04 | 0.20.31-1.1build1 | vulnerable |
| Ubuntu | dulwich | 24.04 | 0.21.6-1 | vulnerable |
| Ubuntu | dulwich | 24.04 | 0.21.6-1build1 | vulnerable |
| Ubuntu | dulwich | 24.04 | 0.21.6-1build2 | vulnerable |
| Ubuntu | dulwich | 26.04 | 0.22.7-1 | vulnerable |
| Ubuntu | dulwich | 26.04 | 0.24.2-2 | vulnerable |
| Ubuntu | dulwich | 26.04 | 1.1.0-2ubuntu1 | vulnerable |
| Ubuntu | dulwich | 26.04 | 1.1.0-3 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dulwich | source | sid | 1.2.8-1 | not yet assigned | Not reported | Not reported |
| Debian | dulwich | source | forky | 1.2.8-1 | not yet assigned | Not reported | Not reported |
| Debian | dulwich | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | dulwich | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-dulwich]Affected
Source package: [dulwich]
Details (2)
0.21.2-1+b1· amd64 · bookwormAffected
dsa · dulwich · debian · bookworm; dsa · dulwich · debian · 12
0.21.2-1+b1· arm64 · bookwormAffected
dsa · dulwich · debian · bookworm; dsa · dulwich · debian · 12
[Debian 13 (Trixie)]
- [python3-dulwich]Affected
Source package: [dulwich]
Details (2)
0.22.7-1· amd64 · trixieAffected
dsa · dulwich · debian · 13
0.22.7-1· arm64 · trixieAffected
dsa · dulwich · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-114096]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-114096]
- [https://security-tracker.debian.org/tracker/CVE-2026-114096]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114096.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]