{"id":"CVE-2026-102994","title":"pypdf is a free and open-source pure-python PDF library","summary":"pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and py…","severity":"high","cvss":8.7,"cvssVector":"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","cwe":["CWE-400","CWE-407"],"vendor":"py-pdf","product":"pypdf","affected":["pypdf < 6.18.0"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T21:17:06.587","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102994","references":[{"url":"https://github.com/py-pdf/pypdf/commit/82501d2993c6387833c4949d205caeb188f8bb9e","label":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/pull/4055","label":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.18.0","label":"security-advisories@github.com"},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-5jq2-8x83-x246","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-30T20:50:09.677694Z"},"cvssSource":"cna","ingestedAt":"2026-09-30T20:23:19.514Z","slug":"CVE-2026-102994","body":"## Overview\n\npypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}