{"action":"Upgrade matrix-synapse to 1.28.0 or later.","affected":[{"fixed":"1.28.0","introduced":"0"}],"component":"matrix-synapse","cve_ids":["CVE-2021-21392"],"ecosystem":"PyPI","epss":0.00944,"exploited":false,"fixed_versions":["1.28.0"],"ghsa_id":"GHSA-5wrh-4jwv-5w78","id":"tcs_01M5KGBXW0Q459TPAEPN0Q8C77","modified_at":"2023-11-08T04:04:44.343565Z","published_at":"2021-04-12T22:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2021-25","https://pypi.org/project/matrix-synapse/","https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78","https://github.com/matrix-org/synapse/pull/9240"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2021-25","url":"https://osv.dev/vulnerability/PYSEC-2021-25"}],"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 1.28.0 request"}