{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40260","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-10T17:31:45.787Z","datePublished":"2026-04-16T23:18:26.687Z","dateUpdated":"2026-04-17T18:42:05.059Z"},"containers":{"cna":{"title":"pypdf: Manipulated XMP metadata entity declarations can exhaust RAM","problemTypes":[{"descriptions":[{"cweId":"CWE-776","lang":"en","description":"CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-3crg-w4f6-42mx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-3crg-w4f6-42mx"},{"name":"https://github.com/py-pdf/pypdf/pull/3724","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/pull/3724"},{"name":"https://github.com/py-pdf/pypdf/commit/b15a374e5ca648d4878e57c3b2c0551e7f8cc7f8","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/commit/b15a374e5ca648d4878e57c3b2c0551e7f8cc7f8"},{"name":"https://github.com/py-pdf/pypdf/releases/tag/6.10.0","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/releases/tag/6.10.0"}],"affected":[{"vendor":"py-pdf","product":"pypdf","versions":[{"version":"< 6.10.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-16T23:18:26.687Z"},"descriptions":[{"lang":"en","value":"pypdf is a free and open-source pure-python PDF library. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. This issue has been fixed in version 6.10.0."}],"source":{"advisory":"GHSA-3crg-w4f6-42mx","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-17T18:41:50.866889Z","id":"CVE-2026-40260","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-17T18:42:05.059Z"}}]}}