Quick answers
- Is CVE-2026-67549 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-67549 being exploited in the wild.
- How severe is CVE-2026-67549?
- High severity, with a CVSS score of 7.6, published 18 September 2026.
- Which products and versions are affected?
- Academy Software Foundation OpenImageIO prior to 3.1.16.0.
- Is there a fix for CVE-2026-67549?
- A patch was published on 2026-07-04: Fix merged in commit 6e9b86e Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-67549 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-67549?
- 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 buffer overflow exists in TIFFInput::read_native_scanline_locked() when processing 1-bit contiguous CMYK TIFF files with PHOTOMETRIC_SEPARATED color space. The vulnerability occurs because bit_convert() writes 8-bit expanded values to a smaller bit-packed buffer, causing out-of-bounds writes and heap corruption. The issue requires no authentication or user interaction beyond opening a malicious TIFF file; it is fixed in version 3.1.16.0.
Affected products
- Academy Software Foundation OpenImageIO prior to 3.1.16.0
Timeline
- 2026-07-04: patched: Fix merged in commit 6e9b86e
- 2026-09-18: disclosed