Quick answers
- Is CVE-2026-113681 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-113681 being exploited in the wild.
- How severe is CVE-2026-113681?
- Medium severity, with a CVSS score of 5.5, published 20 October 2026.
- Which products and versions are affected?
- Academy Software Foundation OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, 3.2.x before 3.2.0.3-beta1.
- Is there a fix for CVE-2026-113681?
- Yes: fixed in OpenImageIO 3.0.20.0, 3.1.15.0, 3.2.0.3-beta1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-113681 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-113681?
- 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.
How to fix
- Fixed in: OpenImageIO 3.0.20.0, 3.1.15.0, 3.2.0.3-beta1
Technical details
The cineon::Codec::Read function contains an integer overflow when calculating the scanline buffer size: multiplying image width by number of components and bytes per component can wrap to zero or a small value. An attacker supplies a Cineon file with a huge declared width that triggers this wraparound, causing UnPackPacked to read past the undersized buffer. This is a heap out-of-bounds read triggered by opening a crafted file.
Affected products
- Academy Software Foundation OpenImageIO before 3.0.20.0, 3.1.x before 3.1.15.0, 3.2.x before 3.2.0.3-beta1
Timeline
- 2026-10-20: disclosed
- 2026-10-16: patched