{"action":"Upgrade litestar to 2.22.0 or later.","affected":[{"fixed":"2.22.0","introduced":"0"}],"component":"litestar","cve_ids":["CVE-2026-48061"],"ecosystem":"PyPI","epss":0.00375,"exploited":false,"fixed_versions":["2.22.0"],"ghsa_id":"GHSA-3qmc-cj7q-62hv","id":"tcs_01M5KH0EY1BFMZWPYKXNJR6EAX","modified_at":"2026-07-13T16:32:04.490223485Z","published_at":"2026-07-13T15:46:15.872114Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2603","https://github.com/litestar-org/litestar/security/advisories/GHSA-3qmc-cj7q-62hv","https://github.com/litestar-org/litestar/commit/6930a20ceb543912cd651b42deae5b9f3637a262","https://github.com/litestar-org/litestar","https://pypi.org/project/litestar","https://github.com/advisories/GHSA-3qmc-cj7q-62hv","https://nvd.nist.gov/vuln/detail/CVE-2026-48061"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-2603","url":"https://osv.dev/vulnerability/PYSEC-2026-2603"}],"summary":"Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header"}