CVE-2026-22253 Soft Serve is missing an authorization check in LFS lock deletion
An authenticated user with write access can delete other users' LFS locks, bypassing ownership checks in Soft Serve Git server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22253?
CVE-2026-22253 is a medium-severity missing authorization vulnerability in charmbracelet soft-serve, published on 8 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2026-22253?
3 open source packages ship an affected version, including github.com/charmbracelet/soft-serve. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/charmbracelet/soft-serve Go | All versions | 0.11.2 |
github.com/charmbracelet/soft-serve Go | All versions | 0.11.2 |
github.com/charmbracelet/soft-serve Go | All versions | 0.11.2 |
Products include Charm Soft Serve.
How do I fix CVE-2026-22253?
Upgrade github.com/charmbracelet/soft-serve to 0.11.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-22253 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22253 exists.
Other vulnerabilities in charmbracelet soft-serve
- CVE-2026-30832 Soft Serve: SSRF via unvalidated LFS endpoint in repo import
- CVE-2025-64522 Soft Serve is vulnerable to SSRF through its Webhooks
- CVE-2026-24058 Soft Serve has Critical Authentication Bypass
- CVE-2023-43809 Soft Serve Public Key Authentication Bypass Vulnerability when Keyboard-Interactive SSH Authentication is Enabled
- CVE-2026-33353 Soft Serve: Authenticated repo import can clone server-local private repositories
Sources
Also known as GHSA-6jm8-x3g6-r33j, GO-2026-4290.