{"id":"CVE-2026-33699","aliases":["GHSA-87mj-5ggw-8qc3","PYSEC-2026-3012"],"url":"https://o3.security/vulnerability/CVE-2026-33699","summary":"pypdf: Possible infinite loop during recovery attempts in DictionaryObject.read_from_stream","details":"pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.","published":"2026-03-26T23:58:42.776Z","modified":"2026-08-12T03:51:47.928835295Z","cvss":null,"epss":{"score":0.00455,"percentile":0.37559,"asOf":"2026-08-25"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pypdf","fixedVersion":"6.9.2"}],"fix":{"url":"https://github.com/py-pdf/pypdf/pull/3693","label":"py-pdf/pypdf#3693"},"references":[{"type":"WEB","url":"https://github.com/py-pdf/pypdf/releases/tag/6.9.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33699.json"},{"type":"ADVISORY","url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-87mj-5ggw-8qc3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33699"},{"type":"FIX","url":"https://github.com/py-pdf/pypdf/pull/3693"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:47.928835295Z"}}