Out-of-bounds Read Affecting openexr package, versions [3.1.4,3.2.9)[3.3.0,3.3.11)[3.4.2,3.4.11)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-OPENEXR-16438296
- published7 May 2026
- disclosed7 May 2026
- creditm1-llie
Introduced: 7 May 2026
NewCVE-2026-42216 (opens in a new tab)How to fix?
Upgrade openexr to version 3.2.9, 3.3.11, 3.4.11 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the IDManifest::init process during prefix expansion. An attacker can trigger an out-of-bounds read by providing a crafted prefix-compressed string where the code attempts to access bytes that do not exist in the current string.