{"id":"CVE-2026-102995","revision":"d217cf59462e44a2a66f794fc6e4e593","records":[{"revision":"d217cf59462e44a2a66f794fc6e4e593","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102995","aliases":[],"title":"pypdf: Possible large memory usage for large /ToUnicode streams (Follow-up 2)","description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can place unusually large source-code or destination-string tokens in a font /ToUnicode mapping, causing pypdf/_cmap.py parse_bfchar to decode and retain oversized values during operations such as text extraction and consume excessive memory. This is a second follow-up to earlier /ToUnicode resource-consumption fixes and is limited to the remaining token-length path. This issue is fixed in version 6.18.1.","state":0,"publishedAt":"2026-09-30T20:01:43.354+00:00","modifiedAt":"2026-10-01T18:50:37.942+00:00","affected":[{"ecosystem":"Vendor product","name":"pypdf","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"py-pdf\",\n                    \"product\": \"pypdf\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 6.18.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://github.com/py-pdf/pypdf/security/advisories/GHSA-fp3h-c4fm-7vvf","https://github.com/py-pdf/pypdf/pull/4071","https://github.com/py-pdf/pypdf/commit/319d0b823ce2c311a2435e9fd93c13994d32bb51","https://github.com/py-pdf/pypdf/releases/tag/6.18.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102995","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102995","identifiers":["CVE-2026-102995"]},"retained":false,"historicalAffected":[]}],"coverage":[]}