{"action":"Upgrade synapse to 1.120.2-r0 or later.","affected":[{"fixed":"1.120.2-r0","introduced":"0"}],"component":"synapse","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["1.120.2-r0"],"id":"tcs_01M6H0KJY3TXZB0RKDG28RFVC1","modified_at":"2026-11-03T06:32:50.295659067Z","published_at":"2024-12-03T17:15:12.787Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2024-53867","https://security.alpinelinux.org/vuln/CVE-2024-53867"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2024-53867#Alpine:v3.21/synapse","url":"https://osv.dev/vulnerability/ALPINE-CVE-2024-53867"}],"summary":"Synapse is an open-source Matrix homeserver. The Sliding Sync feature on Synapse versions between 1.113.0rc1 and 1.120.0 can leak partial room state changes to users no longer in a room. Non-state eve"}