Low [CVE-2026-93590] Denial of Service via UHDR encoder policy bypass
This low-severity Red Hat Linux advisory covers CVE-2026-93590; related products: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat package: imagemagick.
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Summary
Denial of Service via UHDR encoder policy bypass. Red Hat rates this low (CVSS 3.7).
Weakness: CWE-131.
Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
- < 7.1.2-31
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Mitigation checklist
- To mitigate this issue, restrict ImageMagick's ability to process UHDR images by modifying the `policy.xml` configuration file. Add a policy entry to deny the UHDR coder, for example: `<policy domain="coder" rights="none" pattern="UHDR" />`. This change may require a service restart for applications that use ImageMagick to take effect and may impact functionality relying on UHDR image processing. Additionally, it is recommended to avoid processing untrusted image files with ImageMagick.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
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