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ImageMagick CVE-2026-53467

| EUVDEUVD-2026-41119 MEDIUM
Use of Uninitialized Resource (CWE-908)
2026-07-01 GitHub_M GHSA-8g53-9m3c-69xg
Information Disclosure Red Hat Imagemagick Suse
5.3
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI
5.3 MEDIUM

MNG files are network-submittable with no authentication; only partial heap disclosure occurs with no integrity or availability impact, yielding C:L/I:N/A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SUSE
MEDIUM
qualitative
Red Hat
5.3 MEDIUM
qualitative

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

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

Lifecycle Timeline

2
Patch available
Jul 01, 2026 - 20:02 EUVD
Analysis Generated
Jul 01, 2026 - 19:36 vuln.today

DescriptionCVE.org

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-51 and 7.1.2-26, the MNG decoder contains a possible heap information disclosure vulnerability because part of the pixels are left unchanged. This issue has been fixed in versions 6.9.13-51 and 7.1.2-26.

AnalysisAI

Heap memory disclosure in ImageMagick's MNG decoder affects all versions prior to 6.9.13-51 (legacy branch) and 7.1.2-26 (current branch), allowing remote unauthenticated attackers to obtain partial heap contents by submitting a crafted MNG image file and retrieving the processed output. The root cause (CWE-908) is that pixel buffers are not fully initialized before output is written, leaving residual in-process heap data embedded in the resulting image. No public exploit or CISA KEV listing exists at time of analysis; however, the zero-authentication, network-accessible attack vector makes this a meaningful risk for any image-processing pipeline that accepts untrusted MNG input.

Technical ContextAI

ImageMagick is a widely-used open-source image manipulation library supporting dozens of formats via discrete decoder modules. The MNG (Multiple-image Network Graphics) format decoder is responsible for parsing and rendering MNG animation containers. The root cause class is CWE-908 (Use of Uninitialized Resource): pixel buffer memory is allocated on the heap but not fully zeroed or written before being committed to the output stream, allowing stale heap contents from prior allocations to survive into the output image. This is consistent with the CPE cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* covering both the 6.x and 7.x branches. Depending on what the ImageMagick process heap holds at processing time - decoded prior images, file paths, or application data passed through the library - the disclosed bytes may carry operationally useful information for an attacker.

RemediationAI

Upgrade ImageMagick to version 6.9.13-51 or later on the 6.x branch, or to version 7.1.2-26 or later on the 7.x branch, per the vendor security advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8g53-9m3c-69xg. Package maintainers on Linux distributions should monitor their respective repositories for backported fixes. If immediate patching is not feasible, the most targeted compensating control is to block or reject MNG-format inputs at the application or WAF layer, which eliminates the attack surface entirely at the trade-off of losing MNG processing capability. As a secondary measure, run ImageMagick in an isolated, low-privilege sandbox (e.g., a container with no access to sensitive process data) to reduce the value of any heap contents that could be disclosed; note this does not prevent the vulnerability but limits its impact.

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Fixed

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CVE-2026-53467 vulnerability details – vuln.today
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