{"action":"Upgrade crawl4ai to 0.8.7 or later.","affected":[{"fixed":"0.8.7","introduced":"0"}],"component":"crawl4ai","cve_ids":["CVE-2026-53753"],"ecosystem":"PyPI","epss":0.029,"exploited":false,"fixed_versions":["0.8.7"],"ghsa_id":"GHSA-qxjp-w3pj-48m7","id":"tcs_01M5KFWVV1NYZ1Y1SH7ZXNGWJV","modified_at":"2026-07-20T21:30:41.637534684Z","published_at":"2026-06-16T20:13:07Z","references":["https://osv.dev/vulnerability/GHSA-qxjp-w3pj-48m7","https://github.com/unclecode/crawl4ai/security/advisories/GHSA-qxjp-w3pj-48m7","https://nvd.nist.gov/vuln/detail/CVE-2026-53753","https://github.com/unclecode/crawl4ai/pull/1855","https://github.com/unclecode/crawl4ai/pull/1886","https://github.com/advisories/GHSA-qxjp-w3pj-48m7","https://github.com/pypa/advisory-database/tree/main/vulns/crawl4ai/PYSEC-2026-319.yaml","https://github.com/unclecode/crawl4ai","https://pypi.org/project/crawl4ai"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"GHSA-qxjp-w3pj-48m7","url":"https://osv.dev/vulnerability/GHSA-qxjp-w3pj-48m7"}],"summary":"Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API"}