CVE-2026-42217
OpenEXR: OpenEXR: Information disclosure via malformed EXR image file processing
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 7, 2026
Updated · June 28, 2026
Description
A flaw was found in OpenEXR. A remote attacker could exploit this vulnerability by providing a specially crafted EXR image file. The readVariableLengthInteger() function, responsible for decoding variable-length integers, does not properly bound the shift count. This can lead to undefined behavior, potentially resulting in information disclosure.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE-1335 · Incorrect Bitwise Shift of Integer