CVE-2026-61555: OpenEXR: Empty multiView viewFromChannelName file crash
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OpenEXRto a version that resolves this vulnerability.Fixed in 3.2.11 - Upgrade
Upgrade
OpenEXRto a version that resolves this vulnerability.Fixed in 3.3.13 - Upgrade
Upgrade
OpenEXRto a version that resolves this vulnerability.Fixed in 3.4.14
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Applications using affected OpenEXR versions are exposed when they process an attacker-crafted EXR file. Exploitation requires local access and user interaction, as reflected by the AV:L and UI:R vector components.
What file characteristics trigger the crash?
The crafted EXR must contain an empty multiView header attribute and a dotless channel name. When OpenEXR processes it through Imf::GetChannelsInMultiPartFile(), Imf::viewFromChannelName() indexes an empty vector and crashes.
Which versions should be used to remediate the issue?
Upgrade to OpenEXR 3.2.11, 3.3.13, or 3.4.14. Affected releases are versions before 3.2.11, versions 3.3.0 through 3.3.12, and versions 3.4.0 through 3.4.13.