{"action":"Upgrade synapse to 1.135.1-r0 or later.","affected":[{"fixed":"1.135.1-r0","introduced":"0"}],"component":"synapse","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["1.135.1-r0"],"id":"tcs_01M6H0NJRK76ENBVX12YPCA7NM","modified_at":"2026-11-03T06:32:51.166446713Z","published_at":"2025-10-02T19:15:31.290Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2025-49090","https://security.alpinelinux.org/vuln/CVE-2025-49090"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2025-49090#Alpine:v3.24/synapse","url":"https://osv.dev/vulnerability/ALPINE-CVE-2025-49090"}],"summary":"The Matrix specification before 1.16 (i.e., with a room version before 12 and State Resolution before 2.1) has deficient state resolution."}