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ImageMagick EUVDEUVD-2026-43187

| CVE-2026-61858 MEDIUM
Improper Link Resolution Before File Access (CWE-59)
2026-07-11 VulnCheck GHSA-26m2-2whw-vfv9
Authentication Bypass Imagemagick Red Hat Suse
4.8
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
4.8 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/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 access with low privileges required to invoke ImageMagick; only limited integrity impact via unauthorized file write; no confidentiality or availability impact described.

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

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

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

Lifecycle Timeline

2
Patch available
Jul 11, 2026 - 15:01 EUVD
Analysis Generated
Jul 11, 2026 - 14:07 vuln.today

DescriptionCVE.org

ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and external delegates due to missing validation checks. Attackers can write files to disallowed paths by bypassing configured policy restrictions through the APNG encoding process.

AnalysisAI

Policy bypass in ImageMagick before 7.1.2-26 allows low-privileged local users to write files to filesystem paths explicitly blocked by the application's security policy framework. The APNG encoder and external delegate mechanisms omit required validation against policy.xml restrictions, enabling circumvention of configured path-based access controls. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, though the impact is meaningful in multi-tenant or shared-processing environments that rely on ImageMagick's policy layer as a security boundary.

Technical ContextAI

ImageMagick implements a policy.xml-based security framework that restricts coders, delegates, paths, and resource usage - commonly used in shared hosting and web application contexts to sandbox image processing. The APNG (Animated PNG) coder and external delegate invocation paths are code routes that translate format-conversion requests into filesystem and subprocess operations. CWE-59 (Improper Link Resolution Before File Access) points to the root cause: path resolution during encoding or delegate execution does not properly validate the resolved target against configured policy rules, allowing a crafted request to reach a disallowed write destination. Affected products are identified by CPE cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*, covering all ImageMagick releases across all platforms prior to version 7.1.2-26.

RemediationAI

Upgrade ImageMagick to version 7.1.2-26 or later, which addresses the missing validation in the APNG encoder and external delegate paths; details are in the upstream advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v3j6-27vc-7pw2. If immediate upgrade is not feasible, disable the APNG coder in policy.xml by adding the directive '<policy domain="coder" rights="none" pattern="APNG" />', which prevents the vulnerable code path from being invoked; note this will block all animated PNG processing. Similarly, audit and restrict external delegate definitions to minimize the attack surface via the delegate code path. As defense-in-depth independent of the patch, enforce OS-level filesystem permissions and run ImageMagick under a dedicated low-privilege service account confined to specific writable directories, so that even a successful policy bypass cannot reach sensitive paths.

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Same weakness CWE-59 – Improper Link Resolution Before File Access

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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 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

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EUVD-2026-43187 vulnerability details – vuln.today
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