{"action":"Upgrade mesop to 1.2.5 or later.","affected":[{"fixed":"1.2.5","introduced":"1.2.3"}],"component":"mesop","cve_ids":["CVE-2026-34824"],"ecosystem":"PyPI","epss":0.00721,"exploited":false,"fixed_versions":["1.2.5"],"ghsa_id":"GHSA-3jr7-6hqp-x679","id":"tcs_01M5KGY2K30HA04WVP6M1D5GMC","modified_at":"2026-07-13T07:15:28.797012959Z","published_at":"2026-04-03T23:17:05.213Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2204","https://github.com/mesop-dev/mesop/releases/tag/v1.2.5","https://github.com/mesop-dev/mesop/commit/760a2079b5c609038c826d24dfbcf9b0be98d987","https://github.com/mesop-dev/mesop/security/advisories/GHSA-3jr7-6hqp-x679"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2204","url":"https://osv.dev/vulnerability/PYSEC-2026-2204"}],"summary":"Mesop is a Python-based UI framework that allows users to build web applications. From version 1.2.3 to before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket"}