Infinite loop in ImageMagick - CVE-2026-55595

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Main Vulnerability Database Vulnerabilities #VU135666

Infinite loop in ImageMagick - CVE-2026-55595

Published: June 29, 2026


Vulnerability identifier: #VU135666
CSH Severity: Medium
CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-55595
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to loop with unreachable exit condition in the connected-components option when processing invalid arguments. A remote attacker can provide invalid arguments to cause a denial of service.

User interaction is required to supply the invalid arguments.


Affected software

ImageMagick
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Desktop Applications Module
Development Tools Module
openSUSE Leap
openEuler
ImageMagick
ImageMagick-c++
ImageMagick-c++-devel
ImageMagick-debuginfo
ImageMagick-debugsource
ImageMagick-devel
ImageMagick-perl
ImageMagick-help
ImageMagick-config-7-upstream
ImageMagick-config-7-SUSE
ImageMagick-doc
libMagick++-7_Q16HDRI5-debuginfo
libMagickCore-7_Q16HDRI10
libMagickCore-7_Q16HDRI10-debuginfo
libMagickWand-7_Q16HDRI10-debuginfo
libMagick++-devel
libMagick++-7_Q16HDRI5
libMagickWand-7_Q16HDRI10
perl-PerlMagick-debuginfo
perl-PerlMagick
libMagickCore-7_Q16HDRI10-32bit
ImageMagick-devel-32bit
libMagick++-devel-32bit
libMagickCore-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit
libMagick++-7_Q16HDRI5-32bit
libMagick++-7_Q16HDRI5-32bit-debuginfo
libMagick++-7_Q16HDRI5-64bit-debuginfo
libMagick++-devel-64bit
ImageMagick-devel-64bit
libMagick++-7_Q16HDRI5-64bit
libMagickCore-7_Q16HDRI10-64bit-debuginfo
libMagickWand-7_Q16HDRI10-64bit
libMagickCore-7_Q16HDRI10-64bit
ImageMagick-extra
ImageMagick-extra-debuginfo
libMagickWand-7_Q16HDRI10-64bit-debuginfo
ImageMagick-config-7-upstream-secure
ImageMagick-config-7-upstream-limited
ImageMagick-config-7-upstream-websafe
ImageMagick-config-7-upstream-open

How to mitigate CVE-2026-55595

Install security update from vendor's website.

ImageMagick - addressed in versions 6.9.13-51, 7.1.2-26
ImageMagick - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++ - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debuginfo - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debugsource - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-perl - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-help - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-config-7-upstream - update to 7.1.0.9-150400.6.96.1
ImageMagick-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-config-7-SUSE - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-doc - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-7_Q16HDRI5-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagickCore-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagickCore-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagickWand-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-debugsource - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagick++-devel - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagick++-7_Q16HDRI5 - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-devel - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagickWand-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
perl-PerlMagick-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
perl-PerlMagick - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
libMagickCore-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
ImageMagick-devel-32bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-devel-32bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickCore-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickWand-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickWand-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-7_Q16HDRI5-32bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-7_Q16HDRI5-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-7_Q16HDRI5-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-devel-64bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
ImageMagick-devel-64bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagick++-7_Q16HDRI5-64bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickCore-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickWand-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickCore-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
ImageMagick-extra - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
ImageMagick-extra-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
libMagickWand-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.96.1, 7.1.1.21-150600.3.73.1
ImageMagick-config-7-upstream-secure - addressed in versions 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-config-7-upstream-limited - addressed in versions 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-config-7-upstream-websafe - addressed in versions 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1
ImageMagick-config-7-upstream-open - addressed in versions 7.1.1.21-150600.3.73.1, 7.1.1.43-150700.3.65.1

External References

Related Security Bulletins