Medium [CVE-2026-53532] Denial of Service via crafted HTJ2K-compressed EXR file
This medium-severity Red Hat Linux advisory covers CVE-2026-53532.
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Summary
A flaw was found in OpenEXR. A remote attacker can provide a specially crafted HTJ2K-compressed EXR file, which causes an unconditional process abort in applications that process untrusted input.
This denial of service occurs because OpenEXR passes a malformed QCD marker to the vendored OpenJPH library, triggering an assertion that cannot be gracefully handled. This vulnerability can lead to the unavailability of services using OpenEXR to process image files.
This vulnerability only affects OpenEXR versions 3.4.0 through 3.4.12, which include HTJ2K compression support. No Red Hat products or Fedora community distributions ship a version within this range.
Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-617.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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