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Advisory record · GHSA-87fv-vqqr-m4jr

SeaweedFS: Unauthenticated SSRF with response read-back via VolumeServer.FetchAndWriteNeedle

CVSS 9.3 CriticalCriticalEPSS 0.0053 · 45th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 11 Aug 2026, 15:58 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/seaweedfs/seaweedfsGo<0.0.0-20260512171120-69da20bdaec90.0.0-20260512171120-69da20bdaec9
Identifiers
GHSA-87fv-vqqr-m4jr · BIT-seaweedfs-2026-73080 · CVE-2026-73080 · GO-2026-6219
Weakness (CWE)
CWE-918
Tags
Published
11 Aug 2026
Updated
18 Aug 2026

Machine-written summary

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

GHSA-87fv-vqqr-m4jr affects the Go package github.com/seaweedfs/seaweedfs before 0.0.0-20260512171120-69da20bdaec9, with the fix in that same version. The VolumeServer.FetchAndWriteNeedle gRPC call had no authentication or target validation, so an attacker who can reach a volume server's gRPC port can make it fetch arbitrary internal or cloud metadata addresses and read the responses back, potentially exposing IAM credentials. Upgrade to 0.0.0-20260512171120-69da20bdaec9 or later, or restrict volume server gRPC ports to trusted hosts and enable mTLS.

Written 6 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
9.3 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0053, the 45th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:50 UTC First seen by agentprime
  2. 31 Oct 2026, 14:50 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.