CVE-2026-40244
Published:April 21, 2026
Updated:April 23, 2026
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, "internal_dwa_compressor.h:1722" performs "curc->width * curc->height" in "int32" arithmetic without a "(size_t)" cast. This is the same overflow pattern fixed in other locations by the recent CVE-2026-34589 batch, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses "internal_dwa_compressor.h:1722".
Affected Packages
openexr (CONAN):
Affected version(s) >=3.3.0 <3.3.10Fix Suggestion:
Update to version 3.3.10openexr (CONAN):
Affected version(s) >=3.2.1 <3.2.8Fix Suggestion:
Update to version 3.2.8openexr (CONAN):
Affected version(s) >=3.4.2 <3.4.10Fix Suggestion:
Update to version 3.4.10https://github.com/AcademySoftwareFoundation/openexr.git (GITHUB):
Affected version(s) >=v3.2.0 <v3.2.8Fix Suggestion:
Update to version v3.2.8https://github.com/AcademySoftwareFoundation/openexr.git (GITHUB):
Affected version(s) >=v3.4.0 <v3.4.10Fix Suggestion:
Update to version v3.4.10https://github.com/AcademySoftwareFoundation/openexr.git (GITHUB):
Affected version(s) >=v3.3.0 <v3.3.10Fix Suggestion:
Update to version v3.3.10Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.4
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Integer Overflow or Wraparound
EPSS
Base Score:
0.01
