{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28804","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-03T14:25:19.246Z","datePublished":"2026-03-06T06:46:28.890Z","dateUpdated":"2026-03-06T16:05:28.630Z"},"containers":{"cna":{"title":"pypdf: Inefficient decoding of ASCIIHexDecode streams","problemTypes":[{"descriptions":[{"cweId":"CWE-407","lang":"en","description":"CWE-407: Inefficient Algorithmic Complexity","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-9m86-7pmv-2852","tags":["x_refsource_CONFIRM"],"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-9m86-7pmv-2852"},{"name":"https://github.com/py-pdf/pypdf/pull/3666","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/pull/3666"},{"name":"https://github.com/py-pdf/pypdf/commit/648c627d2657447dfb1773412af05a0a5103b98f","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/commit/648c627d2657447dfb1773412af05a0a5103b98f"},{"name":"https://github.com/py-pdf/pypdf/releases/tag/6.7.5","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/releases/tag/6.7.5"}],"affected":[{"vendor":"py-pdf","product":"pypdf","versions":[{"version":"< 6.7.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-06T06:46:28.890Z"},"descriptions":[{"lang":"en","value":"pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5."}],"source":{"advisory":"GHSA-9m86-7pmv-2852","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T15:59:59.320844Z","id":"CVE-2026-28804","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":"2026-03-06T16:05:28.630Z"}}]}}