AcademySoftwareFoundation OpenEXR up to 3.2.10/3.3.12/3.4.13 OpenEXRCore decoding.c unpack_sample_table out-of-bounds

Summaryinfo

A vulnerability was found in AcademySoftwareFoundation OpenEXR up to 3.2.10/3.3.12/3.4.13. It has been declared as problematic. Affected by this issue is the function unpack_sample_table of the file decoding.c of the component OpenEXRCore. Such manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2026-59983. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in AcademySoftwareFoundation 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 unpack_sample_table of the file decoding.c of the component OpenEXRCore. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to an out-of-bounds read. The vulnerability is reached when a crafted uncompressed deep-tile EXR causes the sample-count table size calculation in OpenEXRCore decoding.c to wrap before unpack_sample_table() iterates over the full attacker-controlled tile dimensions, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-59983 since 07/07/2026. The exploitation is known to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. Technical details 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

• AcademySoftwareFoundation

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

Website

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

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