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Vulnerability · Published Aug 25, 2026 · Assigned by GitHub_M

CVE-2026-61555OpenEXR: Empty multiView viewFromChannelName file crash

Medium 5.5

In plain English

A medium-severity out-of-bounds read in openexr from AcademySoftwareFoundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.24openexr3.4.15-r0ALPINE-CVE-2026-61555
Debian:12openexrno fix listedDEBIAN-CVE-2026-61555
Debian:13openexrno fix listedDEBIAN-CVE-2026-61555
Debian:14openexr3.4.14-0.1DEBIAN-CVE-2026-61555
Ubuntu:26.10openexrno fix listedUBUNTU-CVE-2026-61555

Affected products (as reported)

VendorProductVersions
AcademySoftwareFoundation openexr < 3.2.11>= 3.3.0, < 3.3.13>= 3.4.0, < 3.4.14

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References