Quick answers
- Is CVE-2026-43909 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-43909 being exploited in the wild.
- How severe is CVE-2026-43909?
- 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.
- Is there a fix for CVE-2026-43909?
- 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-2026-43909 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-43909?
- 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 SwapRGBABytes() function within DPXColorConverter.cpp. The vulnerability is triggered when processing kABGR DPX images with large dimensions where the total pixel count (Width * Height) exceeds INT_MAX/4. This causes the loop index expression 'i * 4' to overflow, resulting in a large negative pointer offset. An attacker can exploit this to achieve a combined out-of-bounds (OOB) read and write primitive. The attack requires a user to open a crafted DPX file (User Interaction required). The issue is resolved 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
Timeline
- 2026-05-03: advisory: GitHub advisory published by maintainers
- 2026-05-14: disclosed: CVE published to NVD