SB2026051113 - Red Hat Enterprise Linux 10 update for openexr
Published: May 11, 2026
Security Bulletin ID
SB2026051113
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer overflow (CVE-ID: CVE-2026-34588)
The vulnerability allows a remote attacker to read and write out-of-bounds memory.
The vulnerability exists due to integer overflow in internal_exr_undo_piz() in the PIZ decoder when parsing a crafted EXR file. A remote attacker can supply a specially crafted EXR file to read and write out-of-bounds memory.
The issue occurs during PIZ decompression because signed 32-bit arithmetic can wrap while advancing the working wavelet pointer, causing the next channel to decode from an incorrect address.
Remediation
Install update from vendor's website.