OpenImageIO: Stack buffer overflow in OpenImageIO Cineon reader via unchecked numberOfElements

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-59181
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-18 16:17:07 UTC
Updated2026-09-18 17:16:58 UTC
DescriptionOpenImageIO 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

EPSS: 0.001980000 probability, percentile 0.098720000 (date 2026-09-19)

Problem Types: CWE-121 | CWE-787 | CWE-121 CWE-121: Stack-based Buffer Overflow | CWE-787 CWE-787: Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AcademySoftwareFoundation OpenImageIO affected < 3.0.20.0 Not specified
CNA AcademySoftwareFoundation OpenImageIO affected >= 3.1.0.0, < 3.1.15.0 Not specified
CNA AcademySoftwareFoundation OpenImageIO affected >= 3.2.0.0-dev, < 3.2.0.3-beta1 Not specified

References

ReferenceSourceLinkTags
github.com/AcademySoftwareFoundation/OpenImageIO/commit/908f22f5528e88e5... [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/pull/5250 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHS... 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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