{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-113790","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-20T17:39:41.372Z","datePublished":"2026-10-21T15:35:52.503Z","dateUpdated":"2026-10-28T01:18:59.036Z"},"containers":{"cna":{"title":"pypdf: Possible large memory usage when parsing arrays and dictionaries","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-f54x-cmq8-qg57","tags":["x_refsource_CONFIRM"],"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-f54x-cmq8-qg57"},{"name":"https://github.com/py-pdf/pypdf/pull/4218","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/pull/4218"},{"name":"https://github.com/py-pdf/pypdf/commit/18bd2981a74479483a0b9507602c58a63d6c9b12","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/commit/18bd2981a74479483a0b9507602c58a63d6c9b12"},{"name":"https://github.com/py-pdf/pypdf/releases/tag/6.21.0","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/releases/tag/6.21.0"}],"affected":[{"vendor":"py-pdf","product":"pypdf","versions":[{"version":"< 6.21.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-21T15:35:52.503Z"},"descriptions":[{"lang":"en","value":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0."}],"source":{"advisory":"GHSA-f54x-cmq8-qg57","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-28T01:18:48.608537Z","id":"CVE-2026-113790","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-10-28T01:18:59.036Z"}}]}}