SB2026043066 - Red Hat Enterprise Linux 8 update for OpenEXR



SB2026043066 - Red Hat Enterprise Linux 8 update for OpenEXR

Published: April 30, 2026

Security Bulletin ID SB2026043066
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Integer overflow (CVE-ID: CVE-2026-27622)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to integer overflow in CompositeDeepScanLine::readPixels when parsing a crafted multipart deep EXR file. A remote attacker can supply a specially crafted file to execute arbitrary code.

User interaction is required to open or process the crafted file through multipart deep read flows using MultiPartInputFile, DeepScanLineInputPart, and CompositeDeepScanLine.


Remediation

Install update from vendor's website.