CVE-2026-61465: ImageMagick before 7.1.2-26 Memory Allocation Policy Bypass
ImageMagick before 7.1.2-26 and 6.9.13-51 is missing a check for the allowed memory allocation limit in matrix-backed operations such as -canny. An attacker can supply a crafted image that causes ImageMagick to allocate more memory than permitted by the configured policy, resulting in a denial of service.
Security readout for executives and security teams
Plain-English summary
ImageMagick can be made to ignore its configured memory allocation limit during certain image operations. A crafted image can force extra memory use and cause denial of service. The issue is not described as data theft or code execution, but it can disrupt services that process untrusted images.
Executive priority
Treat as a service reliability risk for image-processing systems, not a breach-class issue based on current sources. Prioritize patching internet-facing or customer-upload workflows first, then internal batch processing.
Technical view
ImageMagick before 7.1.2-26 and 6.9.13-51 lacks an allowed-memory-limit check in matrix-backed operations such as -canny. This is classified as CWE-770 and has CVSS 4.0 score 4.8. The reported impact is availability loss through excessive memory allocation beyond policy limits.
Likely exposure
Exposure is highest in applications, batch jobs, or APIs that process user-supplied images with vulnerable ImageMagick versions, especially workflows using affected matrix-backed operations. Systems using ImageMagick only on trusted images have lower practical exposure.
Exploitation context
The source bundle reports crafted-image denial of service. It does not cite active exploitation, and KEV status is false. The CVSS vector indicates low attack complexity, no privileges, local attack vector, and user interaction required.
Researcher notes
Evidence supports a memory allocation policy bypass in ImageMagick matrix-backed operations. Sources name denial of service only. No exploit status, workaround details, or broader affected products are provided beyond ImageMagick versions listed in the bundle.
Mitigation direction
Upgrade ImageMagick to 7.1.2-26, 6.9.13-51, or later where applicable.
Check the ImageMagick advisory for version-specific remediation guidance.
Limit processing of untrusted images until patched.
Apply process memory and workload isolation controls around image processing services.
Validation and detection
Inventory ImageMagick versions across hosts, containers, and build images.
Identify services that accept or transform untrusted image files.
Confirm whether affected matrix-backed operations are reachable in production workflows.
Verify upgraded systems report fixed ImageMagick versions.
Review monitoring for memory exhaustion or image-processing denial-of-service events.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · low confidence lookup
CWE-770: Exact CWE lookup
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CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-770 · source CWE mapping
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.