Academy Software Foundation OpenEXR up to 3.2.10/3.3.12/3.4.13 FlatHalfChannel FlatHalfChannel::row dataWindow.min use after free

Summaryinfo

A vulnerability was found in Academy Software Foundation OpenEXR up to 3.2.10/3.3.12/3.4.13. It has been rated as problematic. Affected by this issue is the function FlatHalfChannel::row of the component FlatHalfChannel. This manipulation of the argument dataWindow.min causes use after free. This vulnerability appears as CVE-2026-59184. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Academy Software Foundation OpenEXR up to 3.2.10/3.3.12/3.4.13. It has been declared as problematic. Affected by this vulnerability is the function FlatHalfChannel::row of the component FlatHalfChannel. The manipulation of the argument dataWindow.min with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect integrity, and availability. The summary by CVE is:

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 allow a crafted EXR with a nonzero dataWindow.min to make TypedFlatImageChannel::row() return an invalid heap pointer, causing out-of-bounds or use-after-free writes. This occurs when an application writes rows through FlatHalfChannel::row(). Affected consumers are tools, converters, render pipeline components, or image-processing services that accept untrusted EXR files and use FlatHalfChannel::row() on loaded images. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-59184 since 07/02/2026. 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 of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.2.11, 3.3.13 or 3.4.14 eliminates this vulnerability.

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Productinfo

Vendor

• Academy Software Foundation

Name

• OpenEXR

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.3.10
• 3.3.11
• 3.3.12
• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6
• 3.4.7
• 3.4.8
• 3.4.9
• 3.4.10
• 3.4.11
• 3.4.12
• 3.4.13

License

• open-source

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CPE 2.2info

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