Sign in
Deutsch English Español Polski
Medium

Image Magick has a Memory Leak in coders/ashlar.c

  • Disclosed: 24.02.2026
  • Updated: 11.10.2026 11:23

Memory leak exists in coders/ashlar.c. The WriteASHLARImage allocates a structure. However, when an exception is thrown, the allocated memory is not properly released, resulting in a potential memory leak.

```bash
==78968== Memcheck, a memory error detector
==78968== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==78968== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==78968== 
==78968== HEAP SUMMARY:
==78968==     in use at exit: 17,232 bytes in 4 blocks
==78968==   total heap usage: 4,781 allocs, 4,777 frees, 785,472 bytes allocated

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) Magick.NET-Q16-AnyCPU < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-AnyCPU < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-OpenMP-x64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-x64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-HDRI-x86 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-OpenMP-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-OpenMP-x64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-OpenMP-x86 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q16-x86 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-AnyCPU < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-OpenMP-arm64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-OpenMP-x64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-x64 < 14.10.3 14.10.3
.NET (NuGet) Magick.NET-Q8-x86 < 14.10.3 14.10.3

References

CVSS score 5.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-401
Platform
.NET (NuGet)
Package
Magick.NET-Q16-AnyCPU, Magick.NET-Q16-arm64, Magick.NET-Q16-HDRI-AnyCPU
Disclosed
24.02.2026
Updated
11.10.2026 11:23

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xgm3-v4r9-wfgm - CC BY 4.0

Vulnerability history: Magick.NET-Q16-HDRI-OpenMP-arm64

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (160) in the archive
Total entries
160
First → latest
07.2025 09.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • High 24
  • Medium 96
  • Low 40

Disclosures per year

Severity:
  1. ImageMagick has out-of-bounds write in ICON decoder due to incorrect loop
    High · 7.5 CVE-2026-53461 < 14.14.0 14.14.0
  2. ImageMagick: Policy Bypass can Trigger an Out-of-Memory condition
    High · 7.5 CVE-2026-53460 < 14.14.0 14.14.0
  3. ImageMagick: Policy Bypass in DCM decoder could result in image with invalid dimensions
    High · 7.5 CVE-2026-49218 < 14.14.0 14.14.0
  4. ImageMagick: Infinite Loop in the MIFF decoder can lead to CPU exhaustion
    High · 7.5 CVE-2026-46522 < 14.13.1 14.13.1
  5. ImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of different dimensions
    High · 7.5 CVE-2026-46520 < 14.13.1 14.13.1
  6. ImageMagick has a heap Buffer Overflow in ImageMagick MVG decoder
    High · 7.5 CVE-2026-33901 < 14.12.0 14.12.0
  7. ImageMagick has a Stack Overflow in DestroyXMLTree()
    High · 7.5 CVE-2026-33908 < 14.12.0 14.12.0
  8. ImageMagick has stack buffer overflow in MagnifyImage
    High · 7.7 CVE-2026-30929 < 14.10.4 14.10.4
  9. ImageMagick: Integer overflow in DIB coder can result in out of bounds read or write
    High · 8.1 CVE-2026-28693 < 14.10.4 14.10.4
  10. ImageMagick has uninitialized pointer dereference in JBIG decoder
    High · 7.5 CVE-2026-28691 < 14.10.4 14.10.4
  11. ImageMagick vulnerable to stack corruption through long morphology kernel names or arrays
    High · 7.1 CVE-2026-28494 < 14.10.4 14.10.4
  12. ImageMagick: MSL attribute stack buffer overflow leads to out of bounds write.
    High · 7.4 CVE-2026-25968 < 14.10.3 14.10.3
  13. ImageMagick: Integer overflow or wraparound and incorrect conversion between numeric types in the internal SVG decoder
    High · 7.5 CVE-2026-25989 < 14.10.3 14.10.3
  14. ImageMagick: Memory allocation with excessive without limits in the internal SVG decoder
    High · 7.5 CVE-2026-25985 < 14.10.3 14.10.3
  15. Image Magick has a Memory Leak in coders/ashlar.c this entry
    Medium · 5.3 CVE-2026-25969 < 14.10.3 14.10.3
  16. ImageMagick: Stack buffer overflow in FTXT reader via oversized integer field
    High · 7.4 CVE-2026-25967 < 14.10.3 14.10.3
  17. ImageMagick: Policy bypass through path traversal allows reading restricted content despite secured policy
    High · 8.6 CVE-2026-25965 < 14.10.3 14.10.3
  18. ImageMagick has heap-buffer-overflow via signed integer overflow in WriteUHDRImage when writing UHDR images with large dimensions
    High · 8.2 CVE-2026-25794 < 14.10.3 14.10.3
  19. ImageMagick: Infinite loop vulnerability when parsing a PCD file
    High · 7.5 CVE-2026-24485 < 14.10.3 14.10.3
  20. ImageMagick has Possible Heap Information Disclosure in PSD ZIP Decompression
    High · 7.5 CVE-2026-24481 < 14.10.3 14.10.3
Show more (5) Showing 20 of 25

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.