{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71870","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-07T18:26:53.524Z","datePublished":"2026-08-07T19:28:26.178Z","dateUpdated":"2026-08-10T12:24:22.451Z"},"containers":{"cna":{"title":"pypdf: Possible large memory usage for large /ToUnicode streams","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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-fp3f-mc75-235c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-fp3f-mc75-235c"},{"name":"https://github.com/py-pdf/pypdf/pull/3944","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/pull/3944"},{"name":"https://github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aa","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/commit/afba8080e19d29a3c256a742b340995e695b35aa"},{"name":"https://github.com/py-pdf/pypdf/releases/tag/6.15.0","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/releases/tag/6.15.0"}],"affected":[{"vendor":"py-pdf","product":"pypdf","versions":[{"version":"< 6.15.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-07T19:28:26.178Z"},"descriptions":[{"lang":"en","value":"pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py function parse_bfrange parses unusually large source-code or destination-string tokens in a font /ToUnicode CMap during text extraction. This issue is fixed in 6.15.0."}],"source":{"advisory":"GHSA-fp3f-mc75-235c","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-10T12:04:06.963067Z","id":"CVE-2026-71870","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":"2026-08-10T12:24:22.451Z"}}]}}