{"action":"Upgrade mesop to 1.3.4 or later.","affected":[{"fixed":"1.3.4","introduced":"0"}],"component":"mesop","cve_ids":["CVE-2026-93421"],"ecosystem":"PyPI","epss":0.00528,"exploited":false,"fixed_versions":["1.3.4"],"ghsa_id":"GHSA-g7f6-rxc4-qhph","id":"tcs_01M5KH9Y9XMG8XSMHPYR0HS8YD","modified_at":"2026-10-01T17:45:10.035276068Z","published_at":"2026-10-01T16:38:38.654373Z","references":["https://osv.dev/vulnerability/PYSEC-2026-4105","https://github.com/mesop-dev/mesop/security/advisories/GHSA-g7f6-rxc4-qhph","https://github.com/mesop-dev/mesop/pull/1397","https://github.com/mesop-dev/mesop/commit/f38c42a1d3eba246941ef8d7f645072d53c58785","https://github.com/mesop-dev/mesop","https://github.com/mesop-dev/mesop/releases/tag/v1.3.4","https://pypi.org/project/mesop","https://github.com/advisories/GHSA-g7f6-rxc4-qhph","https://nvd.nist.gov/vuln/detail/CVE-2026-93421"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-4105","url":"https://osv.dev/vulnerability/PYSEC-2026-4105"},{"source":"nvd","source_id":"CVE-2026-93421","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93421"}],"summary":"Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint"}