CVE-2026-43905

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, jpeg2000input.cpp:395 computes buffer size as const int bufsize = w * h * ch * buffer_bpp using signed 32-bit arithmetic. When the product exceeds INT_MAX, the result wraps to 0 or a small value. m_buf.resize() allocates an undersized buffer, and subsequent pixel write loops cause heap overflow. Conditional on USE_OPENJPH build flag. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq	Exploit Vendor Advisory
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openimageio:openimageio::::::::
	cpe:2.3:a:openimageio:openimageio::::::::

History

15 May 2026, 19:43

Type	Values Removed	Values Added
References	~~() https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq -~~	() https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-pj45-cf3g-28gq - Exploit, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
First Time		Openimageio Openimageio openimageio
CPE		cpe:2.3:a:openimageio:openimageio::::::::

14 May 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-14 20:17

Updated : 2026-05-15 19:43

NVD link : CVE-2026-43905

Mitre link : CVE-2026-43905

CVE.ORG link : CVE-2026-43905

JSON object : View

Products Affected

openimageio

openimageio

CWE

CWE-190

Integer Overflow or Wraparound

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