AcademySoftwareFoundation OpenImageIO prior 3.0.20.0/3.1.15.0/3.2.0.3-beta1 Cineon Input cineoninput.cpp CineonInput::open numberofelements memory corruption

Summaryinfo

A vulnerability was found in AcademySoftwareFoundation OpenImageIO. It has been declared as problematic. Affected is the function CineonInput::open of the file src/cineon.imageio/cineoninput.cpp of the component Cineon Input Handler. Executing a manipulation of the argument numberofelements can lead to memory corruption. This vulnerability is registered as CVE-2026-59181. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in AcademySoftwareFoundation OpenImageIO and classified as problematic. This vulnerability affects the function CineonInput::open of the file src/cineon.imageio/cineoninput.cpp of the component Cineon Input Handler. The manipulation of the argument numberofelements with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-59181 since 07/02/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 3.0.20.0, 3.1.15.0 or 3.2.0.3-beta1 eliminates this vulnerability.

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Productinfo

Vendor

• AcademySoftwareFoundation

Name

• OpenImageIO

License

• open-source

Website

• Product: https://github.com/AcademySoftwareFoundation/OpenImageIO/

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