{"action":"Upgrade pypdf to 6.6.0 or later.","affected":[{"fixed":"6.6.0","introduced":"0"}],"component":"pypdf","cve_ids":["CVE-2026-22691"],"ecosystem":"PyPI","epss":0.00433,"exploited":false,"fixed_versions":["6.6.0"],"ghsa_id":"GHSA-4f6g-68pf-7vhv","id":"tcs_01M5KGVXYPW01PMCG4FCC7GN7X","modified_at":"2026-07-07T17:47:50.544051989Z","published_at":"2026-07-07T16:03:17.544640Z","references":["https://osv.dev/vulnerability/PYSEC-2026-1828","https://github.com/py-pdf/pypdf/security/advisories/GHSA-4f6g-68pf-7vhv","https://nvd.nist.gov/vuln/detail/CVE-2026-22691","https://github.com/py-pdf/pypdf/pull/3594","https://github.com/py-pdf/pypdf/commit/294165726b646bb7799be1cc787f593f2fdbcf45","https://github.com/py-pdf/pypdf","https://github.com/py-pdf/pypdf/releases/tag/6.6.0","https://pypi.org/project/pypdf","https://github.com/advisories/GHSA-4f6g-68pf-7vhv"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-1828","url":"https://osv.dev/vulnerability/PYSEC-2026-1828"},{"source":"nvd","source_id":"CVE-2026-22691","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22691"}],"summary":"pypdf has possible long runtimes for malformed startxref"}