VULNERABILITY INTELLIGENCE

CVE-2026-55874

CVSS score7.7 HIGH
EPSS probability0.61%
CISA KEVNot currently listed
Published2026-07-08
Last modified2026-07-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Description

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 bucket to read objects from other buckets through server-side copy. This issue is fixed in version 4.34.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references