CVE-2026-86421

ImageMagick before 7.1.2-30 Memory Leak via MSL decoder

Published Sep 7, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
ImageMagick before 7.1.2-30 and 6.9.13-55 contains a memory leak in the MSL image decoder. A crafted MSL image triggers memory allocation without proper deallocation, allowing an attacker to exhaust memory and cause a denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4858-1 imagemagick security update
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description ImageMagick before 7.1.2-30 and 6.9.13-55 contains a memory leak in the MSL image decoder. A crafted MSL image triggers memory allocation without proper deallocation, allowing an attacker to exhaust memory and cause a denial of service.
Title ImageMagick before 7.1.2-30 Memory Leak via MSL decoder
First Time appeared Imagemagick
Imagemagick imagemagick
Weaknesses CWE-400
CPEs cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Vendors & Products Imagemagick
Imagemagick imagemagick
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 29, 2026, 9:17 PM
Reserved
Sep 7, 2026, 12:33 PM
Status
Analyzed
Published
Sep 7, 2026, 1:20 PM
Modified
Oct 29, 2026, 9:17 PM
Severity
Low
Public date
Sep 7, 2026, 12:53 PM