CVE-2026-58372
SeaweedFS before 4.34 contains a path traversal vulnerability in the S3 gateway DeleteMultipleObjectsHandler that allows authenticated S3 principals with write access to a single bucket to delete arbitrary objects in other tenants' buckets by supplying…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
SeaweedFS before 4.34 contains a path traversal vulnerability in the S3 gateway DeleteMultipleObjectsHandler that allows authenticated S3 principals with write access to a single bucket to delete arbitrary objects in other tenants' buckets by supplying object keys containing ../ sequences in the DeleteObjects XML request body. Attackers can bypass authorization controls through a confused deputy condition, as the validateRequestPath middleware only inspects URL-captured path variables and never examines request-body keys, allowing the filer path to collapse directory traversal sequences and resolve deletions outside the authorized bucket.
- CVSS 4.0
- 7.2 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.12% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Source
- disclosure@vulncheck.com
References
- https://github.com/geo-chen/oss/blob/main/seaweedfs.md
- https://github.com/seaweedfs/seaweedfs/commit/0345658ea8e7c6a3948ad190634b00866ec244c9
- https://github.com/seaweedfs/seaweedfs/pull/9931
- https://github.com/seaweedfs/seaweedfs/releases/tag/4.34
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv
- https://www.vulncheck.com/advisories/seaweedfs-cross-bucket-object-deletion-via-deleteobjects-request-body-keys
- https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-w62w-66v9-vvgv
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.