Quick answers
- Is CVE-2026-43908 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-43908 being exploited in the wild.
- How severe is CVE-2026-43908?
- High severity, with a CVSS score of 8.8, published 14 May 2026.
- Which products and versions are affected?
- Academy Software Foundation OpenImageIO < 3.0.18.0, < 3.1.13.0, <= 3.2.0.1-dev.
- Is there a fix for CVE-2026-43908?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-43908 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-43908?
- Check whether you run Academy Software Foundation OpenImageIO at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A signed 32-bit integer overflow exists in the ConvertCbYCrYToRGB() function within the DPX 4:2:2 decoder of OpenImageIO. The vulnerability is triggered when the pixel-loop index expression 'i * 3' exceeds the maximum value for a 32-bit signed integer (INT_MAX), which occurs when processing very large images (where Width * Height exceeds approximately 715 million pixels). This overflow results in a large negative pointer offset during an output buffer write operation, leading to a heap-based out-of-bounds write and a subsequent segmentation fault. An attacker can exploit this by providing a maliciously crafted DPX image file. The issue is fixed in versions 3.0.18.0 and 3.1.13.0.
Affected products
- Academy Software Foundation OpenImageIO < 3.0.18.0, < 3.1.13.0, <= 3.2.0.1-dev
Timeline
- 2026-05-03: advisory: GitHub security advisory published by maintainers
- 2026-05-14: disclosed: CVE-2026-43908 published