AcademySoftwareFoundation OpenImageIO up to 3.0.18.0/3.1.13.0 ConvertCbYCrYToRGB integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in AcademySoftwareFoundation OpenImageIO up to 3.0.18.0/3.1.13.0. This issue affects the function ConvertCbYCrYToRGB. The manipulation leads to integer overflow. This vulnerability is listed as CVE-2026-43908. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in AcademySoftwareFoundation OpenImageIO up to 3.0.18.0/3.1.13.0 and classified as critical. This issue affects the function ConvertCbYCrYToRGB. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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, a signed 32-bit integer overflow in the pixel-loop index expression i * 3 inside ConvertCbYCrYToRGB() causes the function to compute a large negative pointer offset into the output buffer, producing an out-of-bounds write that crashes the process. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-43908 since 05/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 314938 (Linux Distros Unpatched Vulnerability : CVE-2026-43908), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.0.18.0 or 3.1.13.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (314938). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• AcademySoftwareFoundation

Name

• OpenImageIO

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18.0
• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9
• 3.1.10
• 3.1.11
• 3.1.12
• 3.1.13.0

License

• open-source

Website

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

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Be aware that VulDB is the high quality source for vulnerability data.

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