CVE-2026-61555 OpenEXR: Empty multiView viewFromChannelName file crash
Attackers can crash applications using OpenEXR by providing a crafted image file with an empty multiView header, causing a null dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-61555?
CVE-2026-61555 is a medium-severity vulnerability in AcademySoftwareFoundation openexr, published on 25 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable to crashing. This occurs when Imf::GetChannelsInMultiPartFile() processes a crafted EXR with an empty multiView header attribute and Imf::viewFromChannelName() indexes the empty vector for a dotless channel name. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
Weakness: CWE-125
Which versions are affected by CVE-2026-61555?
How do I fix CVE-2026-61555?
Upgrade to a fixed version.
Is CVE-2026-61555 being exploited?
There is no known exploitation of CVE-2026-61555 in the wild and no public exploit code.
Sources
Also known as AZL-97634, BELL-CVE-2026-61555, DEBIAN-CVE-2026-61555, ECHO-c31d-7527-5ac7, GHSA-g8f2-r72m-48vx, MINI-83mf-8cf6-3jh9 and 1 more.