Uncontrolled Memory Allocation in OpenEXR - #VU147220
Published: September 7, 2026
Vulnerability identifier: #VU147220
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-789
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper validation of an allocation size in the IDManifest constructor when processing a crafted EXR file. A remote attacker can provide an EXR file with an excessive declared uncompressed data size to cause a denial of service.
The issue is reachable when an application constructs an IDManifest from an ID manifest.
Affected software
OpenEXR
Remediation
Install security update from vendor's website.
OpenEXR - addressed in versions 3.2.12, 3.3.14, 3.4.15