CVE-2026-34589

描述

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

如何修補 CVE-2026-34589

要修補 CVE-2026-34589,請將受影響套件升級到下列已修補版本。

• —升級至 3.2.7 或更新版本
• —升級至 3.2.7 或更新版本

CVE-2026-34589 正在被利用嗎?

低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 3.2.0, < 3.2.7
• >= 3.2.0, < 3.2.7, >= 3.3.0, < 3.3.9, >= 3.4.0, < 3.4.9

CVSS 分數

參考連結(8)

• ADVISORYgithub.com/advisories/GHSA-p8xc-w3q4-h64x
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-34589
• PATCHgithub.com/AcademySoftwareFoundation/openexr
• PATCHpypi.org/project/openexr
• WEB