Use After Free in Academysoftwarefoundation Openexr
CVE-2026-59184
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.
Vulnerability class: Use-After-Free
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
Affected products
- Academysoftwarefoundation Openexr — versions < 3.2.11, >= 3.3.0, < 3.3.13, >= 3.4.0, < 3.4.14
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-59184?
- CVE-2026-59184 is a high-severity vulnerability in Academysoftwarefoundation Openexr, classified under Use After Free. CVSS score: 7.1/10. Published 2026-08-25.
- How severe is CVE-2026-59184?
- High severity. CVSS v3 base score is 7.1 out of 10.