{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33144","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-17T20:35:49.929Z","datePublished":"2026-03-20T20:07:58.175Z","dateUpdated":"2026-03-20T21:22:31.163Z"},"containers":{"cna":{"title":"GPAC MP4Box Heap Buffer Overflow Write in gf_xml_parse_bit_sequence_bs (NHML BS Parsing)","problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/gpac/gpac/security/advisories/GHSA-3jw5-9pmw-vmfg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gpac/gpac/security/advisories/GHSA-3jw5-9pmw-vmfg"},{"name":"https://github.com/gpac/gpac/commit/86b0e36ea4c71402fbdaf7e13d73ba8841003e72","tags":["x_refsource_MISC"],"url":"https://github.com/gpac/gpac/commit/86b0e36ea4c71402fbdaf7e13d73ba8841003e72"}],"affected":[{"vendor":"gpac","product":"gpac","versions":[{"version":"< 86b0e36ea4c71402fbdaf7e13d73ba8841003e72","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-20T20:07:58.175Z"},"descriptions":[{"lang":"en","value":"GPAC is an open-source multimedia framework. Prior to commit 86b0e36, a heap-based buffer overflow (write) vulnerability was discovered in GPAC MP4Box. The vulnerability exists in the gf_xml_parse_bit_sequence_bs function in utils/xml_bin_custom.c when processing a crafted NHML file containing malicious <BS> (BitSequence) elements. An attacker can exploit this by providing a specially crafted NHML file, causing an out-of-bounds write on the heap. This issue has been via commit 86b0e36."}],"source":{"advisory":"GHSA-3jw5-9pmw-vmfg","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/gpac/gpac/security/advisories/GHSA-3jw5-9pmw-vmfg","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-20T21:20:35.775326Z","id":"CVE-2026-33144","options":[{"Exploitation":"poc"},{"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":"2026-03-20T21:22:31.163Z"}}]}}