CVE-2026-116151

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Memory Leak in JNG Encoder

Published Oct 25, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Description

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the JNG encoder that fails to release allocated memory when processing a crafted image. Attackers can supply crafted images that are encoded to JNG to leak memory, potentially causing resource exhaustion and a limited denial of service.

Analysis

Technical impact

ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the JNG encoder that fails to release allocated memory when processing a crafted image. An attacker can supply such a crafted image that is encoded to JNG, causing the victim process to leak memory over time and potentially exhausting system resources. This results in a limited denial of service, reducing the availability of the impacted ImageMagick instance and any services that rely on it.

Affected Systems

The affected vendor is ImageMagick, with the product ImageMagick. The vulnerability applies to all versions of ImageMagick 6 before 6.9.13-58 and 7.x before 7.1.2-33, so any build in those ranges is potentially vulnerable.

Risk and Exploitability

The CVSS score of 6.3 indicates a moderate severity impact. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog, suggesting that no widespread exploitation has been documented to date. The attack vector is inferred to be local or network based on the need to supply a crafted image to the ImageMagick encoder; remote exploitation would require sending controlled image data to a service that processes images.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ImageMagick

unaffected

Version	Status	Constraints
`7.0.0-0`	affected	< 7.1.2-33
`7.1.2-33`	unaffected	—

ImageMagick

unaffected

Version	Status	Constraints
`0`	affected	< 6.9.13-58
`6.9.13-58`	unaffected	—

Configuration 1 [-]

OR	cpe:2.3:a:imagemagick:imagemagick::::::::
	cpe:2.3:a:imagemagick:imagemagick::::::::

No data.

Vendor Product Versions

Imagemagick

Version	Status	Scheme	Platform
`[7.0.0-0,7.1.2-33)`	affected	semver	—
`7.1.2-33`	unaffected	semver	—

Imagemagick

Version	Status	Scheme	Platform
`[0,6.9.13-58)`	affected	generic	—
`6.9.13-58`	unaffected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade ImageMagick to at least 6.9.13-58 or 7.1.2-33 or later, where the memory leak has been fixed.
If an upgrade is not immediately possible, disable or restrict the use of the JNG encoder by configuring ImageMagick policies or converting images to alternative formats.
Implement memory‑usage monitoring and set resource limits for any processes that run ImageMagick, and alert on abnormal memory consumption.

Generated by OpenCVE AI on October 26, 2026 at 01:26 UTC.

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4875-1	imagemagick security update

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.273% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v9q4-cm37-q2jm
https://nvd.nist.gov/vuln/detail/CVE-2026-116151
https://www.cve.org/CVERecord?id=CVE-2026-116151
https://www.vulncheck.com/advisories/imagemagick-before-6.9.13-58-and-7-x-before-7.1.2-33-memory-leak-in-jng-encoder

History

Oct 26, 2026 6:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Oct 26, 2026 12:30 AM Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-772
References		https://nvd.nist.gov/vuln/detail/CVE-2026-116151 https://www.cve.org/CVERecord?id=CVE-2026-116151
Metrics	threat_severity `None`	threat_severity `Low`

Oct 25, 2026 1:45 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a memory leak in the JNG encoder that fails to release allocated memory when processing a crafted image. Attackers can supply crafted images that are encoded to JNG to leak memory, potentially causing resource exhaustion and a limited denial of service.
Title		ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Memory Leak in JNG Encoder
First Time appeared		Imagemagick Imagemagick imagemagick
Weaknesses		CWE-401
CPEs		cpe:2.3:a:imagemagick:imagemagick::::::::
Vendors & Products		Imagemagick Imagemagick imagemagick
References		https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v9q4-cm37-q2jm https://www.vulncheck.com/advisories/imagemagick-before-6.9.13-58-and-7-x-before-7.1.2-33-memory-leak-in-jng-encoder
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'}`