Integer Overflow or Wraparound Affecting openimageio package, versions [,3.1.13.1)
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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- published15 May 2026
- disclosed14 May 2026
- creditMedoedus
Introduced: 14 May 2026
CVE-2026-43905 (opens in a new tab)How to fix?
Upgrade openimageio to version 3.1.13.1 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the jpeg2000input.cpp process when calculating buffer size using signed 32-bit arithmetic. An attacker can trigger a heap overflow by providing crafted image dimensions that cause integer overflow, resulting in an undersized buffer allocation and subsequent out-of-bounds writes during pixel processing. This is only exploitable if the USE_OPENJPH build flag is enabled.