CVE-2025-15506 AcademySoftwareFoundation OpenColorIO FileRules.cpp ConvertToRegularExpression out-of-bounds
A local attacker can trigger an out-of-bounds read in OpenColorIO, potentially causing a crash or leaking memory contents.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-15506?
CVE-2025-15506 is a medium-severity memory corruption vulnerability in AcademySoftwareFoundation OpenColorIO, published on 11 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in AcademySoftwareFoundation OpenColorIO up to 2.5.0. This issue affects the function ConvertToRegularExpression of the file src/OpenColorIO/FileRules.cpp. Performing a manipulation results in out-of-bounds read. The attack needs to be approached locally. The exploit has been made public and could be used. The patch is named ebdbb75123c9d5f4643e041314e2bc988a13f20d. To fix this issue, it is recommended to deploy a patch. The fix was added to the 2.5.1 milestone.
Which versions are affected by CVE-2025-15506?
3 open source packages ship an affected version, including opencolorio.
| Package | Affected | Fixed in |
|---|---|---|
opencolorio PyPI | All versions | 2.5.1 |
opencolorio PyPI | All versions | 2.5.1 |
opencolorio PyPI | All versions | 2.5.1 |
How do I fix CVE-2025-15506?
Upgrade opencolorio to 2.5.1 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-15506 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15506 exists.
Sources
Also known as DEBIAN-CVE-2025-15506, GHSA-m86r-wr74-693h, PYSEC-2026-1745, UBUNTU-CVE-2025-15506.