{"action":"Upgrade pypdf to 6.15.0 or later.","affected":[{"fixed":"6.15.0","introduced":"0"}],"component":"pypdf","cve_ids":["CVE-2026-71870"],"ecosystem":"PyPI","epss":0.00125,"exploited":false,"fixed_versions":["6.15.0"],"ghsa_id":"GHSA-fp3f-mc75-235c","id":"tcs_01M5KFFN53EVFAM3CW3E0HANEK","modified_at":"2026-09-10T03:51:13.982103349Z","published_at":"2026-08-07T19:29:09Z","references":["https://osv.dev/vulnerability/GHSA-fp3f-mc75-235c","https://github.com/py-pdf/pypdf/security/advisories/GHSA-fp3f-mc75-235c","https://github.com/py-pdf/pypdf/pull/3944","https://github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aa","https://github.com/py-pdf/pypdf","https://github.com/py-pdf/pypdf/releases/tag/6.15.0"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-fp3f-mc75-235c","url":"https://osv.dev/vulnerability/GHSA-fp3f-mc75-235c"}],"summary":"pypdf: Possible large memory usage for large /ToUnicode streams"}