{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T23:37:38.416","vulnerabilities":[{"cve":{"id":"CVE-2023-36807","sourceIdentifier":"security-advisories@github.com","published":"2023-06-30T19:15:09.283","lastModified":"2024-11-21T08:10:38.247","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In version 2.10.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case if the user extracted metadata from such a malformed PDF. Versions prior to 2.10.5 throw an error, but do not hang forever. This issue was fixed with https://github.com/py-pdf/pypdf/pull/1331 which has been included in release 2.10.6. Users are advised to upgrade. Users unable to upgrade should modify `PyPDF2/generic/_data_structures.py::read_object` to an an error throwing case. See GHSA-hm9v-vj3r-r55m for details. "}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":6.2,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.5,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-835"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:pypdf_project:pypdf:2.10.5:*:*:*:*:*:*:*","matchCriteriaId":"8BD8B7BF-3DD0-4276-9DB5-C0E222DFD085"}]}]}],"references":[{"url":"https://github.com/py-pdf/pypdf/issues/1329","source":"security-advisories@github.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/py-pdf/pypdf/pull/1331","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m","source":"security-advisories@github.com","tags":["Exploit","Mitigation","Patch","Vendor Advisory"]},{"url":"https://github.com/py-pdf/pypdf/issues/1329","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/py-pdf/pypdf/pull/1331","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mitigation","Patch","Vendor Advisory"]}]}}]}