VulnerabilityAnalyzed

CVE-2026-40183

In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats.

MEDIUM 5.5EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS: 0.19% probability · 9th percentile
CISA KEV: Not listed
Weakness: CWE-122
Affected: imagemagick/imagemagick
Source: security-advisories@github.com

References

https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19Release Notes
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4Vendor Advisory
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0Release Notes

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.