by Kastro
Paper/Archive/CVE-2026-30832

CVE-2026-30832

charmbracelet soft-serve — Soft Serve: SSRF via unvalidated LFS endpoint in repo import

EPSS 0.3%public exploitCVSS 9.1
critical.is priorityof 100
43
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 27.7.277 × 205.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
soft-serve>= 0.6.0, < 0.11.4–CNA

Scores by source

GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

refgithub.com/charmbracelet/soft-serve/security/advisories/GHSA-3fvx-xrxq-8jvvrefgithub.com/charmbracelet/soft-serve/commit/3ef660098ab37a7950457da8ecc25b516e37ce4erefgithub.com/charmbracelet/soft-serve/releases/tag/v0.11.4