{"api_version":"1","generated_at":"2026-05-30T01:26:49+00:00","cve":"CVE-2026-43996","urls":{"html":"https://cve.report/CVE-2026-43996","api":"https://cve.report/api/cve/CVE-2026-43996.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43996","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43996"},"summary":{"title":"OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-05-14 20:17:07","updated_at":"2026-05-16 01:16:16"},"problem_types":["CWE-125","CWE-125 CWE-125: Out-of-bounds Read"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43996","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43996","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"AcademySoftwareFoundation","product":"OpenImageIO","version":"affected < 3.0.18.0","platforms":[]},{"source":"CNA","vendor":"AcademySoftwareFoundation","product":"OpenImageIO","version":"affected >= 3.1.4.0-beta, < 3.1.13.0","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"43996","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openimageio","cpe5":"openimageio","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43996","cve":"CVE-2026-43996","epss":"0.000130000","percentile":"0.024410000","score_date":"2026-05-25","updated_at":"2026-05-26 00:10:59"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-43996","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-16T00:52:59.068131Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-16T00:53:37.525Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"OpenImageIO","vendor":"AcademySoftwareFoundation","versions":[{"status":"affected","version":"< 3.0.18.0"},{"status":"affected","version":">= 3.1.4.0-beta, < 3.1.13.0"}]}],"descriptions":[{"lang":"en","value":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-14T19:08:26.307Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55","tags":["x_refsource_CONFIRM"],"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55"}],"source":{"advisory":"GHSA-mq8j-73c4-cr55","discovery":"UNKNOWN"},"title":"OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-43996","datePublished":"2026-05-14T19:08:26.307Z","dateReserved":"2026-05-04T20:24:31.917Z","dateUpdated":"2026-05-16T00:53:37.525Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-14 20:17:07","lastModifiedDate":"2026-05-16 01:16:16","problem_types":["CWE-125","CWE-125 CWE-125: Out-of-bounds Read"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*","versionEndExcluding":"3.0.18.0","matchCriteriaId":"90B206C1-E7DB-4175-8077-C76D5C8533AF"},{"vulnerable":true,"criteria":"cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1.0.0","versionEndExcluding":"3.1.13.0","matchCriteriaId":"E1F5BCA2-D6C4-4F7B-8D2A-EBD19A022467"},{"vulnerable":true,"criteria":"cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev:*:*:*:*:*:*","matchCriteriaId":"F43FE0AC-4CFC-485D-8370-37336EB2CEA0"},{"vulnerable":true,"criteria":"cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:*","matchCriteriaId":"450296D8-74F5-4847-8433-FE3DFB16C58E"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43996","Ordinal":"1","Title":"OpenImageIO: Integer wraparound in bounds check of decode_pixel ","CVE":"CVE-2026-43996","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43996","Ordinal":"1","NoteData":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.","Type":"Description","Title":"OpenImageIO: Integer wraparound in bounds check of decode_pixel "}]}}}