CVE-2026-41142 OpenEXR is Vulnerable to Integer overflow in ImageChannel::resize leads to heap OOB write via OpenEXRUtil public API
An integer overflow in OpenEXR's ImageChannel::resize allows heap out-of-bounds writes, potentially leading to code execution or crashes when processing malicious images.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-41142?
CVE-2026-41142 is a high-severity vulnerability in Openexr Openexr, published on 7 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, there is an integer overflow in ImageChannel::resize that leads to heap OOB write via OpenEXRUtil public API. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.
Weakness: CWE-190
Which versions are affected by CVE-2026-41142?
It affects 1 product.
Products include Openexr Openexr.
How do I fix CVE-2026-41142?
Upgrade to a fixed version.
Is CVE-2026-41142 being exploited?
There is no known exploitation of CVE-2026-41142 in the wild and no public exploit code.
Other vulnerabilities in Openexr Openexr
Sources
Also known as BELL-CVE-2026-41142, CLSA-2026-1778756042, CLSA-2026-1778760144, DEBIAN-CVE-2026-41142, ECHO-dd6a-e30b-958d, GHSA-m25w-72cj-q6mg and 6 more.