CVE-2026-28691

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, an uninitialized pointer dereference vulnerability exists in the JBIG decoder due to a missing check. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

How to fix CVE-2026-28691

To remediate CVE-2026-28691, upgrade the affected package to a fixed version below.

• —upgrade to 8:6.9.11.60+dfsg-1.3+deb11u11 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later
• —upgrade to 14.10.4 or later

Is CVE-2026-28691 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (20)

• from 0, < 8:6.9.11.60+dfsg-1.3+deb11u11
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4
• from 0, < 14.10.4

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-28691
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-28691
• PATCHgithub.com/ImageMagick/ImageMagick
• WEBgithub.com/dlemstra/Magick.NET/releases/tag/14.10.4