GHSA-8g9f-ccmr-vfvg: Duplicate Advisory ImageMagick Has A Possible Heap Vulnerability

MODERATE
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CVSS 3.7
CWE-416
Published
Advisory Summary

GHSA-8g9f-ccmr-vfvg is a MODERATE (CVSS 3.7) imagemagick has a possible heap vulnerability (CWE-416: Use After Free) affecting Duplicate Advisory libraries in the NuGet ecosystem. The issue involves imagemagick has a possible heap use after free vulnerability in its meta coder. Remediation is available by upgrading affected packages to version 14.10.3.

GHSA-8g9f-ccmr-vfvg at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-8g9f-ccmr-vfvg
Severity MODERATE
CVSS v3.1 Base Score 3.7
CWE Classification CWE-416: Use After Free
Affected Product Duplicate Advisory
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix GHSA-8g9f-ccmr-vfvg

To remediate this vulnerability, upgrade all affected Duplicate Advisory 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
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 GHSA-8g9f-ccmr-vfvg, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for Magick.NET-Q16-AnyCPU

Analyze the terminal output to locate any version of Duplicate Advisory 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. In Duplicate Advisory, 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

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-2gq3-ww97-wfjm. This link is maintained to preserve external references. ### Original Description ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.

GHSA-8g9f-ccmr-vfvg Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
14.10.3
Product / Package Ecosystem Affected Versions Fixed Version
Magick.NET-Q16-AnyCPU
nuget/Magick.NET-Q16-AnyCPU
NuGet
< 14.10.3
14.10.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm
NVD — GHSA-8g9f-ccmr-vfvg NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56376
www.vulncheck.com/advisories/imagemag... WEB
https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder

Frequently Asked Questions

What is GHSA-8g9f-ccmr-vfvg?
GHSA-8g9f-ccmr-vfvg is a security vulnerability in Duplicate Advisory involving ImageMagick has a possible heap Use After Free vulnerability in its meta coder under CWE-416: Use After Free.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 14.10.3 across affected packages: Magick.NET-Q16-AnyCPU.
What version fixes GHSA-8g9f-ccmr-vfvg?
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.
What is the CVSS score of GHSA-8g9f-ccmr-vfvg?
GHSA-8g9f-ccmr-vfvg has a CVSS v3.1 base score of 3.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with GHSA-8g9f-ccmr-vfvg?
GHSA-8g9f-ccmr-vfvg is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check NuGet dependencies for GHSA-8g9f-ccmr-vfvg?
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-8g9f-ccmr-vfvg",
  "modified" : "2026-09-24T20:03:43Z",
  "published" : "2026-06-23T15:32:37Z",
  "withdrawn" : "2026-09-24T20:03:43Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: ImageMagick has a possible heap Use After Free vulnerability in its meta coder",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2gq3-ww97-wfjm. This link is maintained to preserve external references.\n\n### Original Description\nImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q16-AnyCPU"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.10.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-56376"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-24T20:03:43Z",
    "nvd_published_at" : "2026-06-23T13:16:46Z"
  }
}