{"action":"Upgrade socket.io-parser to 3.3.5 or later.","affected":[{"fixed":"3.3.5","introduced":"0"},{"fixed":"3.4.4","introduced":"3.4.0"},{"fixed":"4.2.6","introduced":"4.0.0"}],"component":"socket.io-parser","cve_ids":["CVE-2026-33151"],"ecosystem":"npm","epss":0.00523,"exploited":false,"fixed_versions":["3.3.5","3.4.4","4.2.6"],"ghsa_id":"GHSA-677m-j7p3-52f9","id":"tcs_01M5KF63HHCSEF287Y6BSDN387","modified_at":"2026-09-10T03:50:37.788695682Z","published_at":"2026-03-18T17:26:14Z","references":["https://osv.dev/vulnerability/GHSA-677m-j7p3-52f9","https://github.com/socketio/socket.io/security/advisories/GHSA-677m-j7p3-52f9","https://nvd.nist.gov/vuln/detail/CVE-2026-33151","https://github.com/socketio/socket.io/commit/719f9ebab0772ffb882bd614b387e585c1aa75d4","https://github.com/socketio/socket.io/commit/9d39f1f080510f036782f2177fac701cc041faaf","https://github.com/socketio/socket.io/commit/b25738c416c4e32fbff62ee182afa8f6d0dacf78","https://github.com/socketio/socket.io"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-677m-j7p3-52f9","url":"https://osv.dev/vulnerability/GHSA-677m-j7p3-52f9"},{"source":"nvd","source_id":"CVE-2026-33151","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33151"}],"summary":"socket.io allows an unbounded number of binary attachments"}