CVE-2026-59187

HighCVSS 7.1/10Last modified Sep 9, 2026

Description

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 are vulnerable to a heap out-of-bounds write when exrmetrics reads a crafted deep scanline EXR. This occurs with pixel conversion options such as --pixelmode float or --bench because DeepSlice requests FLOAT output while the backing sample buffers are allocated using the input HALF element size. The issue is fixed in versions 3.3.13 and 3.4.14.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 25, 2026
Last modified
Sep 9, 2026
NVD status
Deferred

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CVE-2026-59187: High severity, CVSS 7.1 | Vulnix