{"id":"CVE-2026-119721","state":"PUBLISHED","title":"Blender before 4.5.15 and 5.x before 5.2.3 Out-of-Bounds Read via blo_bhead_id Accessors","description":"Blender before 4.5.15 and 5.x before 5.2.3 contains an out-of-bounds read vulnerability in blo_bhead_id_* accessors in readfile.cc that read ID fields without block length checks. Attackers can supply a crafted .blend file with short ID blocks that, when browsed or appended from, causes heap over-reads leading to crashes or heap memory disclosure.","publishedAt":"2026-10-30T15:16:17.738Z","updatedAt":"2026-10-30T18:36:11.655Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Blender Foundation Blender"],"affected":[{"vendor":"Blender Foundation","product":"Blender","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.5.15","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThan":"5.2.3","versionType":"semver"}],"repo":"https://projects.blender.org/blender/blender"}],"references":["https://projects.blender.org/blender/blender/pulls/164279","https://projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef0e7427784da5","https://projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b76609bb6d1ae8a0e","https://projects.blender.org/blender/blender/commit/495deb9efff880c42aa88110aec0ea2c0fb1eb07","https://projects.blender.org/blender/blender/commit/94d99b362b0d236dcf07a96c1c8f9f5389d0583c","https://projects.blender.org/blender/blender","https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-out-of-bounds-read-via-blo-bhead-id-accessors"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-30T18:40:06.088Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119721.json","commit":"7c60edf882a89f07fcce8b786bfad034e7ddeecb","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119721","state":"PUBLISHED","datePublished":"2026-10-30T15:16:17.738Z","dateUpdated":"2026-10-30T18:36:11.655Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-30T14:49:29.119Z"},"containers":{"cna":{"title":"Blender before 4.5.15 and 5.x before 5.2.3 Out-of-Bounds Read via blo_bhead_id Accessors","descriptions":[{"lang":"en","value":"Blender before 4.5.15 and 5.x before 5.2.3 contains an out-of-bounds read vulnerability in blo_bhead_id_* accessors in readfile.cc that read ID fields without block length checks. Attackers can supply a crafted .blend file with short ID blocks that, when browsed or appended from, causes heap over-reads leading to crashes or heap memory disclosure."}],"affected":[{"vendor":"Blender Foundation","product":"Blender","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.5.15","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThan":"5.2.3","versionType":"semver"}],"repo":"https://projects.blender.org/blender/blender"}],"references":[{"url":"https://projects.blender.org/blender/blender/pulls/164279","tags":["patch"]},{"url":"https://projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef0e7427784da5","tags":["patch"]},{"url":"https://projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b76609bb6d1ae8a0e","tags":["patch"]},{"url":"https://projects.blender.org/blender/blender/commit/495deb9efff880c42aa88110aec0ea2c0fb1eb07","tags":["patch"]},{"url":"https://projects.blender.org/blender/blender/commit/94d99b362b0d236dcf07a96c1c8f9f5389d0583c","tags":["patch"]},{"url":"https://projects.blender.org/blender/blender","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-out-of-bounds-read-via-blo-bhead-id-accessors","name":"VulnCheck Advisory: Blender before 4.5.15 and 5.x before 5.2.3 Out-of-Bounds Read via blo_bhead_id Accessors","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-30T15:16:17.738Z"},"datePublic":"2026-10-13T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:blender:blender:*:*:*:*:*:*:*:*","versionEndExcluding":"4.5.15"},{"vulnerable":true,"criteria":"cpe:2.3:a:blender:blender:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.0","versionEndExcluding":"5.2.3"}]}]}],"credits":[{"lang":"en","value":"Tristan Madani","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T18:25:13.808921Z","id":"CVE-2026-119721","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T18:36:11.655Z"}}]}}}