CVE Explorer
CVE-2026-43996
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
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"OpenImageIO","vendor":"AcademySoftwareFoundation","versions":[{"status":"affected","version":"< 3.0.18.0"},{"status":"affected","version":">= 3.1.4.0-beta, < 3.1.13.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b514d940e82ad16faccbdaae5398af034984c99bc6c6664a14d529049063dffe · sha256:0ef5dd0588c9e5d5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"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"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b514d940e82ad16faccbdaae5398af034984c99bc6c6664a14d529049063dffe · sha256:0ef5dd0588c9e5d5… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b514d940e82ad16faccbdaae5398af034984c99bc6c6664a14d529049063dffe · sha256:0ef5dd0588c9e5d5… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"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"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b514d940e82ad16faccbdaae5398af034984c99bc6c6664a14d529049063dffe · sha256:0ef5dd0588c9e5d5… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b514d940e82ad16faccbdaae5398af034984c99bc6c6664a14d529049063dffe · sha256:0ef5dd0588c9e5d5… · /containers/adp/0/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.