{"action":"Upgrade synapse to 1.34.0-r0 or later.","affected":[{"fixed":"1.34.0-r0","introduced":"0"}],"component":"synapse","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.13","exploited":false,"fixed_versions":["1.34.0-r0"],"id":"tcs_01M6GQKER9HFS890E5E9F022DR","modified_at":"2026-11-03T06:32:32.151681694Z","published_at":"2021-05-11T15:15:08.507Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-29471","https://security.alpinelinux.org/vuln/CVE-2021-29471"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-29471","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-29471"}],"summary":"Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.33.2 \"Push r"}