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Advisory record · GHSA-w62w-66v9-vvgv

SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access

CVSS 7.8 HighEPSS 0.016 · 76th percentile

Published by the GitHub Advisory Database at 12 Aug 2026, 19:19 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/seaweedfs/seaweedfsGo<0.0.0-20260526080459-dd1b4287899e0.0.0-20260526080459-dd1b4287899e
Identifiers
GHSA-w62w-66v9-vvgv · BIT-seaweedfs-2026-54917 · BIT-seaweedfs-2026-58372 · CVE-2026-54917 · CVE-2026-58372 · GO-2026-6221
Weakness (CWE)
CWE-22
Tags
Published
12 Aug 2026
Updated
25 Sept 2026

Machine-written summary

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

SeaweedFS (Go module github.com/seaweedfs/seaweedfs) before 0.0.0-20260526080459-dd1b4287899e is vulnerable to path traversal in its S3 and Iceberg REST gateways, where a ".." segment in a URL can redirect a request to another bucket. An attacker who can send requests to the gateway can read or write objects in a bucket other than the one named in the path; with authentication enabled, a principal can reach buckets it has no grant for. Upgrade to 0.0.0-20260526080459-dd1b4287899e or later. The source describes a reverse proxy workaround that rejects ".." sequences in request paths.

Written 1 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
7.8 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.016, the 76th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 30 Jun 2026, 15:57 UTC Confirmed by the CVE List
  2. 31 Oct 2026, 14:13 UTC First seen by agentprime
  3. 31 Oct 2026, 14:13 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.