Skip to main content

ImageMagick CVE-2026-56375

| EUVDEUVD-2026-44627 MEDIUM
Memory Leak (CWE-401)
2026-07-15 VulnCheck GHSA-xqmc-7954-658r
Denial Of Service Imagemagick Red Hat Suse
4.8
CVSS 4.0 · Vendor: VulnCheck
Share

Severity by source

Vendor (VulnCheck) PRIMARY
4.8 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
3.3 LOW

Local file processing vector (AV:L), no attacker privileges needed, user must process a malicious file (UI:R), impact is availability only.

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

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
Jul 15, 2026 - 12:38 vuln.today
Analysis Generated
Jul 15, 2026 - 12:38 vuln.today
CVE Published
Jul 15, 2026 - 11:25 cve.org
MEDIUM 4.8

DescriptionCVE.org

ImageMagick through 7.1.2-18 contains a memory leak vulnerability in the ASHLAR coder when an action fails. Attackers can trigger failed actions to exhaust memory resources and cause denial of service.

AnalysisAI

Memory exhaustion denial of service in ImageMagick through 7.1.2-18 arises from the ASHLAR coder failing to release a temporary image object when an internal action fails, allowing an attacker who can supply malicious ASHLAR files to a processing pipeline to cumulatively exhaust process memory. The CVSS 4.0 vector (AV:L/UI:P) confirms this is a local-vector attack requiring passive user or pipeline interaction to process the crafted file, not a remote unauthenticated scenario. No public exploit has been identified at time of analysis, and the vulnerability is not listed in CISA KEV; confirmed fixed versions exist for Magick.NET NuGet packages at 14.11.1.

Technical ContextAI

The ASHLAR coder is a format-specific image handler within the ImageMagick processing pipeline responsible for decoding and encoding ASHLAR-format files. CWE-401 (Missing Release of Memory after Effective Lifetime) identifies the root cause: a temporary image object is allocated during action processing but is never freed when that action fails, causing a per-failure memory leak that accumulates across repeated invocations. CPE cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* covers all platforms and build configurations of the ImageMagick library up to and including version 7.1.2-18. The .NET ecosystem bindings - Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-OpenMP-arm64, and Magick.NET-Q16-HDRI-arm64 - are also affected because they wrap the underlying ImageMagick C library and expose the same code path. The flaw is a classic resource management defect in error-path handling, where the happy path correctly releases memory but the error branch exits without doing so.

RemediationAI

For .NET users, upgrade all affected Magick.NET NuGet packages to version 14.11.1 or later: Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-OpenMP-arm64, and Magick.NET-Q16-HDRI-arm64 are all fixed at 14.11.1, as confirmed by the GHSA advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-6p22-q7w5-33pg. For the core ImageMagick library, upgrade to a version beyond 7.1.2-18; however, the exact fixed release version of the upstream library is not explicitly stated in the available data and must be verified directly from the GHSA advisory or the ImageMagick release notes. As a compensating control where immediate patching is not feasible, disable the ASHLAR coder in ImageMagick's policy.xml by adding a deny policy for the ASHLAR format (e.g., setting rights to none for the ASHLAR pattern); this eliminates the vulnerable code path entirely but prevents any legitimate ASHLAR image processing. Additionally, sandboxing or resource-limiting (e.g., via cgroups or ulimit) the image-processing process can cap the memory exhaustion impact and prevent a full out-of-memory condition from affecting the host system.

More in Imagemagick

View all
CVE-2017-15277 MEDIUM POC
6.5 Oct 12

ReadGIFImage in coders/gif.c in ImageMagick 7.0.6-1 and GraphicsMagick 1.3.26 leaves the palette uninitialized when proc
CVE-2016-5841 CRITICAL POC
9.8 Dec 13

Integer overflow in MagickCore/profile.c in ImageMagick before 7.0.2-1 allows remote attackers to cause a denial of serv
CVE-2016-3717 MEDIUM POC
5.5 May 05

The LABEL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to read arbitrary files vi
CVE-2016-5118 CRITICAL
9.8 Jun 10

The OpenBlob function in blob.c in GraphicsMagick before 1.3.24 and ImageMagick allows remote attackers to execute arbit
CVE-2016-5689 CRITICAL POC
9.8 Dec 13

The DCM reader in ImageMagick before 6.9.4-5 and 7.x before 7.0.1-7 allows remote attackers to have unspecified impact b
CVE-2016-5690 CRITICAL POC
9.8 Dec 13

The ReadDCMImage function in DCM reader in ImageMagick before 6.9.4-5 and 7.x before 7.0.1-7 allows remote attackers to

CVE-2016-5691 CRITICAL POC
9.8 Dec 13

The DCM reader in ImageMagick before 6.9.4-5 and 7.x before 7.0.1-7 allows remote attackers to have unspecified impact b
CVE-2017-14138 CRITICAL POC
9.8 Sep 04

ImageMagick 7.0.6-5 has a memory leak vulnerability in ReadWEBPImage in coders/webp.c because memory is not freed in cer
CVE-2026-23876 CRITICAL POC
9.8 Jan 20

Heap buffer overflow in ImageMagick's XBM image decoder (ReadXBMImage) lets remote attackers write attacker-controlled d
CVE-2023-34152 CRITICAL POC
9.8 May 30

A vulnerability was found in ImageMagick. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable
CVE-2019-19952 CRITICAL POC
9.8 Dec 24

In ImageMagick 7.0.9-7 Q16, there is a use-after-free in the function MngInfoDiscardObject of coders/png.c, related to R
CVE-2018-14551 CRITICAL POC
9.8 Jul 23

The ReadMATImageV4 function in coders/mat.c in ImageMagick 7.0.8-7 uses an uninitialized variable, leading to memory cor

Same weakness CWE-401 – Memory Leak

View all
CVE-2020-13934 HIGH
7.5
CVE-2016-4232 HIGH POC
7.5
CVE-2024-25450 HIGH POC
8.8
CVE-2023-33718 HIGH POC
8.8
CVE-2019-6128 HIGH POC
8.8
CVE-2026-67183 HIGH POC
8.7
CVE-2023-34451 HIGH POC
8.2
CVE-2023-41484 HIGH POC
8.1

Same technique Denial Of Service

View all
CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

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 Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Development Tools 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP6 Fixed

Share

CVE-2026-56375 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy