{"cve":"CVE-2026-54917","nvd":{"published":"2026-06-25T19:16:42.230","modified":"2026-06-29T21:21:10.757","status":"Analyzed","description":"SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the S3 API gateway and the Iceberg REST catalog gateway construct their routers with mux.NewRouter().SkipClean(true). With path cleaning disabled, a .. segment inside the URL survives routing, so a request such as `GET /bucket-A/../evil-bucket/key`, is matched as bucket=bucket-A, object=../evil-bucket/key. The captured object key is then joined into a filer path with util.JoinPath (S3) / path.Join (Iceberg), which collapse the .. server-side, so the actual read or write lands in evil-bucket. This vulnerability is fixed in 4.30.","cvss_v4":{"vector":"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","score":7.8},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","score":10.0},"cwes":["CWE-22"],"references":["https://github.com/seaweedfs/seaweedfs/pull/9687","https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv","https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv"],"products":["seaweedfs:seaweedfs"],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-54917","score":0.01641,"percentile":0.76393,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w62w-66v9-vvgv","url":"https://osv.dev/vulnerability/GHSA-w62w-66v9-vvgv","summary":"SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access","modified":"2026-09-25T14:25:32.933982123Z","packages":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","purl":"pkg:golang/github.com/seaweedfs/seaweedfs","ranges":["<0.0.0-20260526080459-dd1b4287899e"],"fixed":["0.0.0-20260526080459-dd1b4287899e"]}]},{"id":"GO-2026-6221","url":"https://osv.dev/vulnerability/GO-2026-6221","summary":"SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access in github.com/seaweedfs/seaweedfs","modified":"2026-09-25T14:25:32.933982123Z","packages":[{"ecosystem":"Go","name":"github.com/seaweedfs/seaweedfs","purl":"pkg:golang/github.com/seaweedfs/seaweedfs","ranges":["<0.0.0-20260526080459-dd1b4287899e"],"fixed":["0.0.0-20260526080459-dd1b4287899e"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}