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Fencer Vulns
medium 5.3

CVE-2026-56371 json

ImageMagick - Memory Leak in TXT File Processing via Texture Attribute

published 2026-02-25 8 mo ago modified 2026-10-29 10 d ago also EUVD-2026-38439 , GHSA-3q5f-gmjc-38r8 , GHSA-98gv-6gmj-cm6m , JLSEC-2026-1052

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is processed.

Patch / fix

  • nuget Magick.NET-Q16-AnyCPU 14.10.3
  • nuget Magick.NET-Q16-HDRI-AnyCPU 14.10.3
  • nuget Magick.NET-Q16-HDRI-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q16-HDRI-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q16-HDRI-arm64 14.10.3
  • nuget Magick.NET-Q16-HDRI-x64 14.10.3
  • nuget Magick.NET-Q16-HDRI-x86 14.10.3
  • nuget Magick.NET-Q16-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q16-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q16-OpenMP-x86 14.10.3
  • nuget Magick.NET-Q16-arm64 14.10.3
  • nuget Magick.NET-Q16-x64 14.10.3
  • nuget Magick.NET-Q16-x86 14.10.3
  • nuget Magick.NET-Q8-AnyCPU 14.10.3
  • nuget Magick.NET-Q8-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q8-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q8-arm64 14.10.3
  • nuget Magick.NET-Q8-x64 14.10.3
  • nuget Magick.NET-Q8-x86 14.10.3
  • julia ImageMagick_jll 7.1.2023+0
  • ImageMagick ImageMagick 6.9.13-40, 7.1.2-15
  • imagemagick Debian 12 8:6.9.11.60+dfsg-1.6+deb12u12
  • imagemagick Debian 13 8:7.1.1.43+dfsg1-1+deb13u11
  • imagemagick Debian 14 8:7.1.2.15+dfsg1-1

debian advisories DEBIAN-CVE-2026-56371

  • imagemagick Ubuntu Pro 14.04 LTS 8:6.7.7.10-6ubuntu3.13+esm25
  • imagemagick Ubuntu Pro 16.04 LTS 8:6.8.9.9-7ubuntu5.16+esm24
  • imagemagick Ubuntu Pro 18.04 LTS 8:6.9.7.4+dfsg-16ubuntu6.15+esm16
  • imagemagick Ubuntu Pro 20.04 LTS 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14
  • imagemagick Ubuntu Pro 22.04 LTS 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14
  • imagemagick Ubuntu Pro 24.04 LTS 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13

ubuntu advisories UBUNTU-CVE-2026-56371

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ImageMagick SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 7.1.0.9-150400.6.96.1
  • ImageMagick SLE Module for Development Tools 15 SP7, SLE Module for Desktop Applications 15 SP7 7.1.1.43-150700.3.65.1
  • ImageMagick SLES for SAP applications 16.0, SLES 16.0 7.1.2.0-160000.10.1
  • ImageMagick SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 6.8.8.1-71.259.1
  • ImageMagick SLES for SAP 15 SP6, SLES 15 SP6-LTSS 7.1.1.21-150600.3.73.1

suse advisories SUSE-SU-2026:3053-1SUSE-SU-2026:3024-1SUSE-SU-2026:3023-1SUSE-SU-2026:2877-1SUSE-SU-2026:22378-1

  • ImageMagick openSUSE Tumbleweed 7.1.2.25-3.1
  • ImageMagick openSUSE Leap 16.0 7.1.2.0-160000.10.1

opensuse advisories openSUSE-SU-2026:11127-1openSUSE-SU-2026:21071-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-56371 updated cvss 5.3

ImageMagick: ImageMagick: Denial of Service due to memory leak in TXT file processing

  • Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl
    affected: workaround, no fix planned “Out of support scope”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub 3.1 0.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/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
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
nuget Magick.NET-Q16-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x86
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x86
<14.10.3
14.10.3
nuget Magick.NET-Q16-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-x86
<14.10.3
14.10.3
nuget Magick.NET-Q8-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q8-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q8-x64
<14.10.3
14.10.3
nuget Magick.NET-Q8-x86
<14.10.3
14.10.3
julia ImageMagick_jll
<7.1.2023+0
7.1.2023+0

Affected products

  • ImageMagick ImageMagick

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.