Auth bypass in Charm Soft Serve
CVE-2026-22253
Soft Serve is a self-hostable Git server for the command line. Prior to version 0.11.2, an authorization bypass in the LFS lock deletion endpoint allows any authenticated user with repository write access to delete locks owned by other users by setting the force flag. The vulnerable code path processes force deletions before retrieving user context, bypassing ownership validation entirely. This issue has been patched in version 0.11.2.
Vulnerability class: Broken Access Control
EPSS: 0.003 (21.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Charm Soft_serve
- Charmbracelet Soft-serve — versions < 0.11.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-22253?
- CVE-2026-22253 is a medium-severity vulnerability in Charm Soft Serve, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2026-01-08.
- How severe is CVE-2026-22253?
- Medium severity. CVSS v3 base score is 5.4 out of 10.