Integer Overflow or Wraparound 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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Integer Overflow or Wraparound vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-CONAN-OPENEXR-16438294
- published7 May 2026
- disclosed7 May 2026
- creditm1-llie
Introduced: 7 May 2026
NewCVE-2026-42217 (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 Integer Overflow or Wraparound via the readVariableLengthInteger function. An attacker can trigger undefined behavior and potentially execute arbitrary code by providing specially crafted EXR input that causes excessive left shifts.