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Advisory record · GHSA-3fvx-xrxq-8jvv

soft-serve vulnerable to SSRF via unvalidated LFS endpoint in repo import

CVSS 9.1 CriticalCriticalEPSS 0.0037 · 30th percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 6 Mar 2026, 22:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/charmbracelet/soft-serveGo>=0.6.0, <0.11.40.11.4
Identifiers
GHSA-3fvx-xrxq-8jvv · CVE-2026-30832 · GO-2026-4634
Weakness (CWE)
CWE-918
Tags
Published
6 Mar 2026
Updated
23 Mar 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Soft-serve versions from 0.6.0 before 0.11.4 are vulnerable to server-side request forgery through the LFS endpoint given to repo import (`--lfs-endpoint`) and to mirror syncs that reuse it. Any authenticated SSH user can make the server send HTTP requests to internal or private addresses, including cloud metadata services, and a user hosting a fake LFS server can read some internal responses. Upgrade to soft-serve 0.11.4, which contains the fix.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0037, the 30th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:09 UTC First seen by agentprime
  2. 31 Oct 2026, 15:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.