Quick answers
- Is CVE-2026-63419 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-63419 being exploited in the wild.
- How severe is CVE-2026-63419?
- High severity, with a CVSS score of 7.8, published 18 September 2026.
- Which products and versions are affected?
- Academy Software Foundation OpenImageIO before 3.0.21.0, before 3.1.16.0, before 3.2.0.3-beta1.
- Is there a fix for CVE-2026-63419?
- A patch was published on 2026-07-02. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-63419 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-63419?
- 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 heap out-of-bounds write vulnerability exists in iffinput::read_native_tile() due to a mismatch between the public ImageSpec tile bytes (16-bit) and internal pixel size (32-bit) for zbuffer-only tiled IFF images. The decoder copies data using m_header.pixel_bytes() instead of imagespec::tile_bytes(true), and failed reads can leave m_buf nonempty, causing partially initialized data to be written to an undersized caller buffer. This can be triggered by providing a malicious IFF file without authentication or special privileges.
Affected products
- Academy Software Foundation OpenImageIO before 3.0.21.0, before 3.1.16.0, before 3.2.0.3-beta1
Timeline
- 2026-09-18: disclosed
- 2026-07-02: patched