{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"0.2.26"}],"component":"fschat","cve_ids":["CVE-2026-6607"],"ecosystem":"PyPI","epss":0.00623,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-5h65-jx66-j7p5","id":"tcs_01M5KF11N11DY2S6G0VE90V8MP","modified_at":"2026-07-13T16:42:38.205840525Z","published_at":"2026-04-20T06:31:28Z","references":["https://osv.dev/vulnerability/GHSA-5h65-jx66-j7p5","https://nvd.nist.gov/vuln/detail/CVE-2026-6607","https://github.com/lm-sys/FastChat/issues/3833","https://github.com/lm-sys/FastChat/pull/3835","https://github.com/lm-sys/FastChat/commit/c9e84b89c91d45191dc24466888de526fa04cf33","https://gist.github.com/YLChen-007/87216a2d97a882d619e11dc67cd473b5","https://github.com/lm-sys/FastChat","https://vuldb.com/submit/792227","https://vuldb.com/vuln/358242","https://vuldb.com/vuln/358242/cti"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-5h65-jx66-j7p5","url":"https://osv.dev/vulnerability/GHSA-5h65-jx66-j7p5"}],"summary":"FastChat has Denial of Service Through Blocking Event Loop in Model Workers (Incomplete Fix for ff66426)"}