Path Traversal in Seaweedfs
CVE-2026-55874
SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one buck…
Vulnerability class: Path Traversal (Directory Traversal)
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Seaweedfs — versions < 4.34
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55874?
- CVE-2026-55874 is a high-severity vulnerability in Seaweedfs, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-07-08.
- How severe is CVE-2026-55874?
- High severity. CVSS v3 base score is 7.7 out of 10.