{"action":"Upgrade matrix-synapse to 1.53.0 or later.","affected":[{"fixed":"1.53.0","introduced":"0"}],"component":"matrix-synapse","cve_ids":["CVE-2022-41952"],"ecosystem":"PyPI","epss":0.00905,"exploited":false,"fixed_versions":["1.53.0"],"ghsa_id":"GHSA-4822-jvwx-w47h","id":"tcs_01M5KHCRQ8GVBZ606MY4CDMJAS","modified_at":"2026-07-06T08:00:38.809523599Z","published_at":"2026-07-02T14:13:17.409521Z","references":["https://osv.dev/vulnerability/PYSEC-2026-663","https://github.com/matrix-org/synapse/security/advisories/GHSA-4822-jvwx-w47h","https://nvd.nist.gov/vuln/detail/CVE-2022-41952","https://github.com/matrix-org/synapse/pull/11784","https://github.com/matrix-org/synapse/pull/11936","https://github.com/matrix-org/synapse","https://github.com/matrix-org/synapse/releases/tag/v1.52.0","https://github.com/matrix-org/synapse/releases/tag/v1.53.0","https://pypi.org/project/matrix-synapse","https://github.com/advisories/GHSA-4822-jvwx-w47h"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-663","url":"https://osv.dev/vulnerability/PYSEC-2026-663"}],"summary":"Uncontrolled Resource Consumption in Matrix Synapse"}