CVE-2026-46693: ImageMagick Race Condition Vulnerability

MODERATE
Advisory Identifier: GHSA-4g75-9r48-jf92
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CVSS 4.1
CWE-362 CWE-567
Published
Advisory Summary

CVE-2026-46693 is a MODERATE (CVSS 4.1) race condition vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting ImageMagick libraries in the NuGet ecosystem. The issue involves race condition in distributed pixel cache server can result in file descriptor hijacking. Remediation is available by upgrading affected packages to version 14.12.0.

CVE-2026-46693 at a Glance

CVE Identifier CVE-2026-46693
GHSA Identifier GHSA-4g75-9r48-jf92
Severity MODERATE
CVSS v3.1 Base Score 4.1
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product ImageMagick
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 4.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-46693

To remediate this vulnerability, upgrade all affected ImageMagick dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Magick.NET-Q16-AnyCPU fixed: 14.12.0 
Upgrade Magick.NET-Q16-AnyCPU to 14.12.0
Magick.NET-Q16-HDRI-AnyCPU fixed: 14.12.0 
Upgrade Magick.NET-Q16-HDRI-AnyCPU to 14.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.12.0
Magick.NET-Q16-HDRI-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-HDRI-arm64 to 14.12.0
Magick.NET-Q16-HDRI-x64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-HDRI-x64 to 14.12.0
Magick.NET-Q16-HDRI-x86 fixed: 14.12.0 
Upgrade Magick.NET-Q16-HDRI-x86 to 14.12.0
Magick.NET-Q16-OpenMP-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-OpenMP-arm64 to 14.12.0
Magick.NET-Q16-OpenMP-x64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-OpenMP-x64 to 14.12.0
Magick.NET-Q16-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-arm64 to 14.12.0
Magick.NET-Q16-x64 fixed: 14.12.0 
Upgrade Magick.NET-Q16-x64 to 14.12.0
Magick.NET-Q16-x86 fixed: 14.12.0 
Upgrade Magick.NET-Q16-x86 to 14.12.0
Magick.NET-Q8-AnyCPU fixed: 14.12.0 
Upgrade Magick.NET-Q8-AnyCPU to 14.12.0
Magick.NET-Q8-OpenMP-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q8-OpenMP-arm64 to 14.12.0
Magick.NET-Q8-OpenMP-x64 fixed: 14.12.0 
Upgrade Magick.NET-Q8-OpenMP-x64 to 14.12.0
Magick.NET-Q8-arm64 fixed: 14.12.0 
Upgrade Magick.NET-Q8-arm64 to 14.12.0
Magick.NET-Q8-x64 fixed: 14.12.0 
Upgrade Magick.NET-Q8-x64 to 14.12.0
Magick.NET-Q8-x86 fixed: 14.12.0 
Upgrade Magick.NET-Q8-x86 to 14.12.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Magick.NET-Q16-AnyCPU

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-46693, inspect your project dependencies for ImageMagick:

inspect dependencies for Magick.NET-Q16-AnyCPU

Analyze the terminal output to locate any version of ImageMagick in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.12.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. In ImageMagick, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An attacker who can connect to a magick -distribute-cache service can hijack a file descriptor in the server process when a race condition is met.

CVE-2026-46693 Affected ImageMagick Versions

17 component(s)
Fixed Versions:
14.12.0
Product / Package Ecosystem Affected Versions Fixed Version
Magick.NET-Q16-AnyCPU
nuget/Magick.NET-Q16-AnyCPU
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-HDRI-AnyCPU
nuget/Magick.NET-Q16-HDRI-AnyCPU
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64
nuget/Magick.NET-Q16-HDRI-OpenMP-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-HDRI-arm64
nuget/Magick.NET-Q16-HDRI-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-HDRI-x64
nuget/Magick.NET-Q16-HDRI-x64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-HDRI-x86
nuget/Magick.NET-Q16-HDRI-x86
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-OpenMP-arm64
nuget/Magick.NET-Q16-OpenMP-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-OpenMP-x64
nuget/Magick.NET-Q16-OpenMP-x64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-arm64
nuget/Magick.NET-Q16-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-x64
nuget/Magick.NET-Q16-x64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q16-x86
nuget/Magick.NET-Q16-x86
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-AnyCPU
nuget/Magick.NET-Q8-AnyCPU
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-OpenMP-arm64
nuget/Magick.NET-Q8-OpenMP-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-OpenMP-x64
nuget/Magick.NET-Q8-OpenMP-x64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-arm64
nuget/Magick.NET-Q8-arm64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-x64
nuget/Magick.NET-Q8-x64
NuGet
< 14.12.0
14.12.0
Magick.NET-Q8-x86
nuget/Magick.NET-Q8-x86
NuGet
< 14.12.0
14.12.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4g75-9r48-jf92
NVD — CVE-2026-46693 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46693
ImageMagick Source Repository REPOSITORY
https://github.com/ImageMagick/ImageMagick

Frequently Asked Questions

What is CVE-2026-46693?
CVE-2026-46693 is a security vulnerability in ImageMagick involving Race Condition in distributed pixel cache server can result in file descriptor hijacking under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which ImageMagick versions are affected?
Affected versions include releases prior to 14.12.0 across affected packages: Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-OpenMP-arm64, Magick.NET-Q16-HDRI-arm64, Magick.NET-Q16-HDRI-x64, Magick.NET-Q16-HDRI-x86, Magick.NET-Q16-OpenMP-arm64, Magick.NET-Q16-OpenMP-x64, Magick.NET-Q16-arm64, Magick.NET-Q16-x64, Magick.NET-Q16-x86, Magick.NET-Q8-AnyCPU, Magick.NET-Q8-OpenMP-arm64, Magick.NET-Q8-OpenMP-x64, Magick.NET-Q8-arm64, Magick.NET-Q8-x64, Magick.NET-Q8-x86.
What version fixes CVE-2026-46693?
Upgrading to 14.12.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Magick.NET-Q16-AnyCPU affected?
Yes, Magick.NET-Q16-AnyCPU is affected in releases prior to 14.12.0. Upgrade your dependency to 14.12.0 or later.
Is Magick.NET-Q16-HDRI-AnyCPU affected?
Yes, Magick.NET-Q16-HDRI-AnyCPU is affected in releases prior to 14.12.0. Upgrade your dependency to 14.12.0 or later.
What is the CVSS score of CVE-2026-46693?
CVE-2026-46693 has a CVSS v3.1 base score of 4.1 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-46693?
CVE-2026-46693 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check NuGet dependencies for CVE-2026-46693?
Run the dependency tree command: 'inspect dependencies for Magick.NET-Q16-AnyCPU'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4g75-9r48-jf92",
  "modified" : "2026-06-11T14:06:59Z",
  "published" : "2026-05-22T13:11:29Z",
  "aliases" : [ "CVE-2026-46693" ],
  "summary" : "ImageMagick: Race Condition in distributed pixel cache server can result in file descriptor hijacking",
  "details" : "An attacker who can connect to a magick -distribute-cache service can hijack a file descriptor in the server process when a race condition is met.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
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      "type" : "ECOSYSTEM",
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  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q8-x86"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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    "url" : "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4g75-9r48-jf92"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-46693"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ImageMagick/ImageMagick"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362", "CWE-567" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-22T13:11:29Z",
    "nvd_published_at" : "2026-06-10T23:16:47Z"
  }
}