TI-2026-31969 Aliases CVE-2026-43906

OpenImageIO: HEIF Heap overflow

HIGH 72CWE-122Published 2026-05-14 · Updated 2026-05-15

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

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, a heap-based buffer overflow in the HEIF decoder of OpenImageIO allows out-of-bounds writes via crafted images due to a subimage metadata mismatch, leading to memory corruption and potential code execution. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00188 8th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed OpenImageIO (AcademySoftwareFoundation): 3.0.18.0, 3.1.13.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AcademySoftwareFoundation	OpenImageIO	before 3.0.18.0; 3.1.4.0-beta to before 3.1.13.0	3.0.18.0, 3.1.13.0	Patch available	CNA

OpenImageIO VendorAcademySoftwareFoundation Affected before 3.0.18.0; 3.1.4.0-beta to before 3.1.13.0 Fixed in 3.0.18.0, 3.1.13.0 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:openimageio:openimageio::::::::	before 3.0.18.0; 3.1.4.0 to before 3.1.13.0	Vulnerable	OpenImageIO Project
cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev::::::	3.2.0.2 dev	Vulnerable	OpenImageIO Project

cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:* Versions before 3.0.18.0; 3.1.4.0 to before 3.1.13.0 Vulnerable ·OpenImageIO Project
cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:* Versions 3.2.0.2 dev Vulnerable ·OpenImageIO Project

Remediation

Fix · CNA OpenImageIO (AcademySoftwareFoundation) Fixed in 3.0.18.0, 3.1.13.0

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2026-43906

References

Exploit 1

https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-gmrp-x952-3m66

TI-2026-30739 OpenColorIO vulnerable to stack buffer overflow via unbounded `sscanf %s` in Spi3D (.spi3d) LUT parser CVSS 4.0HIGH 8.4
TI-2026-38605 OpenEXR: Unhandled assert abort in HTJ2K decoder via crafted QCD marker (DoS) CVSS 4.0HIGH 7.1
TI-2026-48281 OpenEXR: Heap out-of-bounds write in exrmultiview with subsampled channel union CVSS 3.1HIGH 7.1
TI-2026-48279 OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision CVSS 3.1HIGH 7.1
TI-2026-42768 OpenEXR: Heap OOB read in SampleCountChannel row when using nonzero dataWindow CVSS 3.1HIGH 7.1
TI-2026-42338 OpenEXR: Out-of-bounds read in DeepImageChannel::row() for non-zero dataWindow origin CVSS 3.1HIGH 7.1

See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences