{"action":"Upgrade matrix-sydent to 1.0.2 or later.","affected":[{"fixed":"1.0.2","introduced":"0"}],"component":"matrix-sydent","cve_ids":["CVE-2019-11340"],"ecosystem":"PyPI","epss":0.01876,"exploited":false,"fixed_versions":["1.0.2"],"ghsa_id":"GHSA-q9h8-gpw5-c95c","id":"tcs_01M5KHDX716D8HV7FDD2G726H4","modified_at":"2026-07-07T11:46:05.809734259Z","published_at":"2026-07-06T08:03:28.015702Z","references":["https://osv.dev/vulnerability/PYSEC-2026-843","https://nvd.nist.gov/vuln/detail/CVE-2019-11340","https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc","https://github.com/matrix-org/sydent/compare/7c002cd...09278fb","https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2","https://twitter.com/matrixdotorg/status/1118934335963500545","https://pypi.org/project/matrix-sydent","https://github.com/advisories/GHSA-q9h8-gpw5-c95c"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-843","url":"https://osv.dev/vulnerability/PYSEC-2026-843"}],"summary":"Matrix Sydent mishandles emails"}