CVE-2026-22253: Soft Serve is missing an authorization check in LFS lock deletion
Vulnerability summary
CVE-2026-22253 is a medium (CVSS 5.4) Incorrect Authorization vulnerability in charm soft_serve. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 23.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 08-01-2026PublishedVulnerability first disclosed.
- 08-01-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
EPSS trend
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.30% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundSoft Serve
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Charm1 product
- soft_serve< 0.11.2
Charmbracelet1 product
- soft-serve< 0.11.2
Github.com/charmbracelet1 product
- soft-serve< 0.11.2
3 vendors · 3 products
References
4 links- github.com/charmbracelet/soft-serve/security/advisories/GHSA-6jm8-x3g6-r33jX Refsource CONFIRMWEBAdvisoryExploitVendor Advisory
- github.com/charmbracelet/soft-serve/commit/000ab5164f0be68cf1ea6b6e7227f11c0e388a42X Refsource MISCWEBFIXPatch