{"action":"Upgrade litestar to 2.20.0 or later.","affected":[{"fixed":"2.20.0","introduced":"0"}],"component":"litestar","cve_ids":["CVE-2026-25478"],"ecosystem":"PyPI","epss":0.00446,"exploited":false,"fixed_versions":["2.20.0"],"ghsa_id":"GHSA-2p2x-hpg8-cqp2","id":"tcs_01M5KGY0R0SX5G1XVN8ANSHQ73","modified_at":"2026-07-13T07:15:26.781903108Z","published_at":"2026-02-09T20:15:57.017Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2195","https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0","https://github.com/litestar-org/litestar/releases/tag/v2.20.0","https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a","https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2195","url":"https://osv.dev/vulnerability/PYSEC-2026-2195"}],"summary":"Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, CORSConfig.allowed_origins_regex is constructed using a regex built from configured allowlist values and used wi"}