CVE-2026-28691 PUBLISHED

ImageMagick has an uninitialized pointer dereference in JBIG decoder

Assigner: GitHub_M
Reserved: 02.03.2026 Published: 09.03.2026 Updated: 09.03.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	ImageMagick
Product	ImageMagick
Versions	Version >= 7.0.0, < 7.1.2-16 is affected Version < 6.9.13-41 is affected

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wj8w-pjxf-9g4f

Problem Types

CWE-252: Unchecked Return Value CWE
CWE-824: Access of Uninitialized Pointer CWE