Vulnerabilities in pkg:nuget/Magick.NET-QMagick.NET-Q16-x8616-x64

PACKAGE
Advisory Identifier: GHSA-xwc6-v6g8-pw2h
Advisory Summary

CVE-2026-25966 is a MODERATE (CVSS 5.9) imagemagick's security policy bypass through vulnerability (CWE-284: Improper Access Control) affecting Magick.NET Q16 AnyCPU libraries in the NuGet ecosystem. The issue involves imagemagick's security policy bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access. Remediation is available by upgrading affected packages to version 14.10.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:nuget/Magick.NET-QMagick.NET-Q16-x8616-x64

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:nuget/Magick.NET-QMagick.NET-Q16-x8616-x64. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-xwc6-v6g8-pw2h CVE-2026-25966 MODERATE ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access

CVE-2026-25966 at a Glance

CVE Identifier CVE-2026-25966
GHSA Identifier GHSA-xwc6-v6g8-pw2h
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-284: Improper Access Control
Affected Product Magick.NET Q16 AnyCPU
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 5.9

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

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

How to Fix CVE-2026-25966

To remediate this vulnerability, upgrade all affected Magick.NET Q16 AnyCPU 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: 14.10.3
Upgrade Magick.NET-Q16-AnyCPU to 14.10.3
Magick.NET-Q16-HDRI-AnyCPU fixed: 14.10.3
Upgrade Magick.NET-Q16-HDRI-AnyCPU to 14.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.3
Magick.NET-Q16-HDRI-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q16-HDRI-arm64 to 14.10.3
Magick.NET-Q16-HDRI-x64 fixed: 14.10.3
Upgrade Magick.NET-Q16-HDRI-x64 to 14.10.3
Magick.NET-Q16-HDRI-x86 fixed: 14.10.3
Upgrade Magick.NET-Q16-HDRI-x86 to 14.10.3
Magick.NET-Q16-OpenMP-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q16-OpenMP-arm64 to 14.10.3
Magick.NET-Q16-OpenMP-x64 fixed: 14.10.3
Upgrade Magick.NET-Q16-OpenMP-x64 to 14.10.3
Magick.NET-Q16-OpenMP-x86 fixed: 14.10.3
Upgrade Magick.NET-Q16-OpenMP-x86 to 14.10.3
Magick.NET-Q16-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q16-arm64 to 14.10.3
Magick.NET-Q16-x64 fixed: 14.10.3
Upgrade Magick.NET-Q16-x64 to 14.10.3
Magick.NET-QMagick.NET-Q16-x8616-x64 fixed: 14.10.3
Upgrade Magick.NET-QMagick.NET-Q16-x8616-x64 to 14.10.3
Magick.NET-Q8-AnyCPU fixed: 14.10.3
Upgrade Magick.NET-Q8-AnyCPU to 14.10.3
Magick.NET-Q8-OpenMP-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q8-OpenMP-arm64 to 14.10.3
Magick.NET-Q8-OpenMP-x64 fixed: 14.10.3
Upgrade Magick.NET-Q8-OpenMP-x64 to 14.10.3
Magick.NET-Q8-arm64 fixed: 14.10.3
Upgrade Magick.NET-Q8-arm64 to 14.10.3
Magick.NET-Q8-x86 fixed: 14.10.3
Upgrade Magick.NET-Q8-x86 to 14.10.3
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-2026-25966, inspect your project dependencies for Magick.NET Q16 AnyCPU:

inspect dependencies for Magick.NET-Q16-AnyCPU

Analyze the terminal output to locate any version of Magick.NET Q16 AnyCPU in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.10.3), 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-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Magick.NET Q16 AnyCPU, 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

The shipped “secure” security policy includes a rule intended to prevent reading/writing from standard streams: ```xml <policy domain="path" rights="none" pattern="-"/> ``` However, ImageMagick also supports fd:<n> pseudo-filenames (e.g., fd:0, fd:1). This path form is not blocked by the secure policy templates, and therefore bypasses the protection goal of “no stdin/stdout”. To resolve this, users can add the following change to their security policy. ```xml <policy domain="path" rights="none" pattern="fd:*"/> ``` And this will also be included in ImageMagick's more secure policies by default.

CVE-2026-25966 Affected Magick.NET Q16 AnyCPU Versions

17 component(s)
Fixed Versions:
14.10.3
Product / Package Ecosystem Affected Versions Fixed Version
Magick.NET-Q16-AnyCPU
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-HDRI-AnyCPU
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-HDRI-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-HDRI-x64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-HDRI-x86
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-OpenMP-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-OpenMP-x64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-OpenMP-x86
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q16-x64
NuGet
< 14.10.3
14.10.3
Magick.NET-QMagick.NET-Q16-x8616-x64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q8-AnyCPU
NuGet
< 14.10.3
14.10.3
Magick.NET-Q8-OpenMP-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q8-OpenMP-x64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q8-arm64
NuGet
< 14.10.3
14.10.3
Magick.NET-Q8-x86
NuGet
< 14.10.3
14.10.3

References

Frequently Asked Questions

What is CVE-2026-25966?
CVE-2026-25966 is a security vulnerability in Magick.NET Q16 AnyCPU involving ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access under CWE-284: Improper Access Control.
Which Magick.NET Q16 AnyCPU versions are affected?
Affected versions include releases prior to 14.10.3 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-OpenMP-x86, Magick.NET-Q16-arm64, Magick.NET-Q16-x64, Magick.NET-QMagick.NET-Q16-x8616-x64, Magick.NET-Q8-AnyCPU, Magick.NET-Q8-OpenMP-arm64, Magick.NET-Q8-OpenMP-x64, Magick.NET-Q8-arm64, Magick.NET-Q8-x86.
What version fixes CVE-2026-25966?
Upgrading to 14.10.3 (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 14.10.3. Upgrade your dependency to 14.10.3 or later.
Is Magick.NET-Q16-HDRI-AnyCPU affected?
Yes, Magick.NET-Q16-HDRI-AnyCPU is affected in releases prior to 14.10.3. Upgrade your dependency to 14.10.3 or later.
What is the CVSS score of CVE-2026-25966?
CVE-2026-25966 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-25966?
CVE-2026-25966 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check NuGet dependencies for CVE-2026-25966?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xwc6-v6g8-pw2h",
  "modified" : "2026-02-24T15:42:38Z",
  "published" : "2026-02-24T15:42:37Z",
  "aliases" : [ "CVE-2026-25966" ],
  "summary" : "ImageMagick's Security Policy Bypass through config/policy-secure.xml via \"fd handler\" leads to stdin/stdout access",
  "details" : "The shipped “secure” security policy includes a rule intended to prevent reading/writing from standard streams:\n\n```xml\n<policy domain=\"path\" rights=\"none\" pattern=\"-\"/>\n```\n\nHowever, ImageMagick also supports fd:<n> pseudo-filenames (e.g., fd:0, fd:1). This path form is not blocked by the secure policy templates, and therefore bypasses the protection goal of “no stdin/stdout”.\n\nTo resolve this, users can add the following change to their security policy.\n\n```xml\n<policy domain=\"path\" rights=\"none\" pattern=\"fd:*\"/>\n```\n\nAnd this will also be included in ImageMagick's more secure policies by default.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  } ],
  "affected" : [ {
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    },
    "ranges" : [ {
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    "package" : {
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    },
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    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.10.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xwc6-v6g8-pw2h"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-25966"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/commit/8d4c67a90ae458fb36393a05c0069e9123ac174c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ImageMagick/ImageMagick"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-24T15:42:37Z",
    "nvd_published_at" : "2026-02-24T02:16:01Z"
  }
}