AcademySoftwareFoundation OpenImageIO prior 3.0.20.0/3.1.15.0/3.2.0.3-beta1 Cineon File cineon::Codec::Read integer overflow

Summaryinfo

A vulnerability identified as problematic has been detected in AcademySoftwareFoundation OpenImageIO. This impacts the function cineon::Codec::Read of the component Cineon File Handler. This manipulation causes integer overflow. This vulnerability appears as CVE-2026-113681. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in AcademySoftwareFoundation OpenImageIO. Affected by this vulnerability is the function cineon::Codec::Read of the component Cineon File Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, and 3.2.x before 3.2.0.3-beta1 contains an integer overflow in cineon::Codec::Read that undersizes the scanline buffer, causing a heap out-of-bounds read. Attackers can supply a crafted Cineon file with a huge declared width that wraps the size calculation to zero, so UnPackPacked reads past a 4-byte buffer and crashes the application.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-113681 since 10/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, 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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