CVE-2026-59181

Severity CVSS v4.0:

Pending analysis

Type:

CWE-121 Stack-based Buffer Overflow

Publication date:

18/09/2026

Last modified:

29/09/2026

Description

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted cineon file can supply a numberofelements value greater than the format maximum of eight. cineoninput::open() uses that unchecked value as the loop bound while filling the fixed strings[8] array, writing pointers beyond the stack buffer and into adjacent state, resulting in memory corruption and denial of service. The affected implementation is identified by src/cineon.imageio/cineoninput.cpp, CineonInput::open(), numberOfElements, and strings[8], which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): High

Base Score 3.x

6.10

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openimageio:openimageio::::::::		3.0.20.0 (excluding)
cpe:2.3:a:openimageio:openimageio::::::::	3.1.0.0 (including)	3.1.15.0 (including)
cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev::::::
cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-59181

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools