Memory leak in ImageMagick - CVE-2026-56366

Vulnerability identifier: #VU124424

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-56366

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the META reader when processing the APP1JPEG input path. A remote attacker can force the application to leak memory and perform denial of service attack.

ImageMagick
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
Ubuntu
Development Tools Module
Desktop Applications Module
openSUSE Leap
openEuler
Anolis OS
imagemagick (Ubuntu package)
ImageMagick-config-6-SUSE
ImageMagick-config-6-upstream
ImageMagick-debuginfo
ImageMagick-devel
libMagickCore-6_Q16-1-debuginfo
ImageMagick-debugsource
libMagickWand-6_Q16-1
libMagickWand-6_Q16-1-debuginfo
libMagickCore-6_Q16-1
libMagick++-devel
ImageMagick-c++
ImageMagick
ImageMagick-c++-devel
ImageMagick-perl
ImageMagick-help
libMagickCore-7_Q16HDRI10-32bit
ImageMagick-devel-32bit
libMagick++-7_Q16HDRI5-32bit-debuginfo
libMagick++-devel-32bit
libMagickWand-7_Q16HDRI10-debuginfo
libMagickCore-7_Q16HDRI10
libMagickWand-7_Q16HDRI10
ImageMagick-config-7-SUSE
ImageMagick-config-7-upstream
ImageMagick-extra-debuginfo
perl-PerlMagick
libMagick++-7_Q16HDRI5
libMagickCore-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit
libMagick++-7_Q16HDRI5-32bit
libMagickWand-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-64bit-debuginfo
libMagickCore-7_Q16HDRI10-64bit
libMagick++-7_Q16HDRI5-64bit-debuginfo
libMagick++-7_Q16HDRI5-64bit
libMagickCore-7_Q16HDRI10-64bit-debuginfo
libMagick++-devel-64bit
ImageMagick-devel-64bit
libMagickWand-7_Q16HDRI10-64bit
ImageMagick-doc
ImageMagick-extra
perl-PerlMagick-debuginfo
libMagickCore-7_Q16HDRI10-debuginfo
libMagick++-7_Q16HDRI5-debuginfo
ImageMagick-config-7-upstream-secure
ImageMagick-config-7-upstream-websafe
ImageMagick-config-7-upstream-open
ImageMagick-config-7-upstream-limited
ImageMagick-djvu
ImageMagick-libs

Install updates from vendor's website.

ImageMagick - addressed in versions 6.9.13-43, 7.1.2-18
imagemagick (Ubuntu package) - addressed in versions 8:6.7.7.10-6ubuntu3.13+esm25, 8:6.8.9.9-7ubuntu5.16+esm24, 8:6.9.7.4+dfsg-16ubuntu6.15+esm16, 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm14, 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm14, 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13, 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2
ImageMagick-config-6-SUSE - update to 6.8.8.1-71.264.1
ImageMagick-config-6-upstream - update to 6.8.8.1-71.264.1
ImageMagick-debuginfo - addressed in versions 6.8.8.1-71.264.1, 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-devel - addressed in versions 6.8.8.1-71.264.1, 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickCore-6_Q16-1-debuginfo - update to 6.8.8.1-71.264.1
ImageMagick-debugsource - addressed in versions 6.8.8.1-71.264.1, 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickWand-6_Q16-1 - update to 6.8.8.1-71.264.1
libMagickWand-6_Q16-1-debuginfo - update to 6.8.8.1-71.264.1
libMagickCore-6_Q16-1 - update to 6.8.8.1-71.264.1
libMagick++-devel - addressed in versions 6.8.8.1-71.264.1, 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-c++ - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-c++-devel - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-debuginfo - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-debugsource - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-devel - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-perl - addressed in versions 6.9.13.52-1, 7.1.2.27-1
ImageMagick-help - addressed in versions 6.9.13.52-1, 7.1.2.27-1
libMagickCore-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
ImageMagick - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-devel-32bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-7_Q16HDRI5-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-devel-32bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickWand-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickCore-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickWand-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-SUSE - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-upstream - update to 7.1.0.9-150400.6.101.1
ImageMagick-extra-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
perl-PerlMagick - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagick++-7_Q16HDRI5 - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickCore-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickWand-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-7_Q16HDRI5-32bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickWand-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickWand-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickCore-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-7_Q16HDRI5-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-7_Q16HDRI5-64bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickCore-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagick++-devel-64bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
ImageMagick-devel-64bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
libMagickWand-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
ImageMagick-doc - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
ImageMagick-extra - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2
perl-PerlMagick-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagickCore-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
libMagick++-7_Q16HDRI5-debuginfo - addressed in versions 7.1.0.9-150400.6.101.1, 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-upstream-secure - addressed in versions 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-upstream-websafe - addressed in versions 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-upstream-open - addressed in versions 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick-config-7-upstream-limited - addressed in versions 7.1.1.21-150600.3.80.2, 7.1.1.43-150700.3.70.1
ImageMagick - update to 7.1.2.27-1
ImageMagick-c++ - update to 7.1.2.27-1
ImageMagick-c++-devel - update to 7.1.2.27-1
ImageMagick-devel - update to 7.1.2.27-1
ImageMagick-djvu - update to 7.1.2.27-1
ImageMagick-doc - update to 7.1.2.27-1
ImageMagick-libs - update to 7.1.2.27-1
ImageMagick-perl - update to 7.1.2.27-1

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-9r56-3gjq-hqf7

• Denial of service in ImageMagick
• openEuler 20.03 LTS SP4 update for ImageMagick
• openEuler 24.03 LTS SP3 update for ImageMagick
• openEuler 24.03 LTS SP1 update for ImageMagick
• openEuler 22.03 LTS SP4 update for ImageMagick
• SUSE update for ImageMagick
• SUSE update for ImageMagick
• SUSE update for ImageMagick
• SUSE update for ImageMagick
• Anolis OS update for ImageMagick
• Ubuntu update for imagemagick
• Ubuntu update for imagemagick