CVE-2026-66063: goshs has a Path Traversal issue

July 28, 2026

The multipart upload filename fix splits on the path separator but never rejects dot-dot, allowing a write outside the served tree.

References

github.com/advisories/GHSA-wg2q-39h6-66x9
github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa
github.com/goshs-labs/goshs/security/advisories/GHSA-wg2q-39h6-66x9
nvd.nist.gov/vuln/detail/CVE-2026-66063

Code Behaviors & Features

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