Description
Soft Serve is a self-hostable Git server for the command line. From version 0.6.0 to before version 0.11.4, an authenticated SSH user can force the server to make HTTP requests to internal/private IP addresses by running repo import with a crafted --lfs-endpoint URL. The initial batch request is blind (the response from a metadata endpoint won't parse as valid LFS JSON), but an attacker hosting a fake LFS server can chain this into full read access to internal services by returning download URLs that point at internal targets. This issue has been patched in version 0.11.4.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-3fvx-xrxq-8jvv
Patch x_refsource_misc
https://github.com/charmbracelet/soft-serve/commit/3ef660098ab37a7950457da8ecc25b516e37ce4e
Release Notes x_refsource_misc
https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.4
Scores
CVSS v3
9.1
EPSS
0.0002
EPSS Percentile
5.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (2)
charm/soft_serve
0.6.0 - 0.11.4
charmbracelet/soft-serve
0.6.0 - 0.11.4Go
Published
Mar 07, 2026
Tracked Since
Mar 07, 2026