{"id":"GO-2026-6278","aliases":["GHSA-w67g-5rqw-f597"],"title":"Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key in github.com/gorilla/websocket","summary":"Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key in github.com/gorilla/websocket","severity":"none","vendor":"gorilla","product":"github.com/gorilla/websocket","ecosystem":"go","affected":["github.com/gorilla/websocket < 1.5.3"],"patched":["github.com/gorilla/websocket 1.5.3"],"published":"2026-08-25","updated":"2026-08-26","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GO-2026-6278","references":[{"url":"https://github.com/canolgun-commits/websocket/security/advisories/GHSA-w67g-5rqw-f597"},{"url":"https://github.com/gorilla/websocket/commit/d67f41855da42d7bccd9ef050c49f7e54e783b95"},{"url":"https://github.com/gorilla/websocket/releases/tag/v1.5.3"}],"tags":["osv","go"],"ingestedAt":"2026-08-26T19:27:03.481Z","slug":"GO-2026-6278","body":"## Overview\n\nGorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key in github.com/gorilla/websocket\n\n## Affected packages\n\n- `github.com/gorilla/websocket < 1.5.3`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/gorilla/websocket 1.5.3`","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}