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Advisory record · GHSA-g2pr-qxjg-7r2w

ImageMagick has memory leak of watermark Image object in ReadSTEGANOImage on multiple error/early-return paths

CVSS 5.3 MediumEPSS 0.0043 · 37th percentile

Published by the GitHub Advisory Database at 24 Feb 2026, 15:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Magick.NET-Q16-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x86NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x86NuGet<14.10.314.10.3
Magick.NET-Q16-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-x64NuGet<14.10.314.10.3
Magick.NET-Q16-x86NuGet<14.10.314.10.3
Magick.NET-Q8-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q8-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-x64NuGet<14.10.314.10.3
Magick.NET-Q8-x86NuGet<14.10.314.10.3
Identifiers
GHSA-g2pr-qxjg-7r2w · CVE-2026-25796
Weakness (CWE)
CWE-401
Tags
Published
24 Feb 2026
Updated
24 Feb 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Magick.NET-Q16 packages (AnyCPU, HDRI, OpenMP and architecture-specific variants) before 14.10.3 contain a memory leak in the STEGANO image reader, where a watermark image object is not freed on several early-return error paths. An attacker who can get the affected software to process a crafted STEGANO image can repeatedly leak memory, which can be used for denial of service. Upgrade to version 14.10.3 or later.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0043, the 37th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:22 UTC First seen by agentprime
  2. 31 Oct 2026, 15:22 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.