CVE Explorer

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

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dea800adc6649e29d6eedff0f6e1c52b7ded755e984fdf8a9ad97ad5c96b53b1

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"seaweedfs","vendor":"seaweedfs","versions":[{"status":"affected","version":"< 4.34"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/references/2

{"name":"https://github.com/seaweedfs/seaweedfs/pull/9929","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/pull/9929"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/references/1

{"name":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34","tags":["x_refsource_MISC"],"url":"https://github.com/seaweedfs/seaweedfs/releases/tag/4.34"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/references/3

{"name":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:daad57d37d5f5977d0f9364e2a4d0aa54201003f3d239b32c38d7083374f5859 · sha256:c39292edd99531c9… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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