Memory leak in ImageMagick - CVE-2026-25796

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Main Vulnerability Database Vulnerabilities #VU123231

Memory leak in ImageMagick - CVE-2026-25796

Published: February 25, 2026


Vulnerability identifier: #VU123231
CSH Severity: Medium
CVSS v4: 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]
CVE-ID: CVE-2026-25796
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due memory leak in the "ReadSTEGANOImage()" function on multiple error/early-return paths. A remote attacker can force the application to leak memory and perform denial of service attack.


Affected software

ImageMagick
Debian Linux
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
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 Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
Ubuntu
Desktop Applications Module
Development Tools Module
openSUSE Leap
openEuler
Anolis OS
imagemagick (Ubuntu package)
ImageMagick-debuginfo
ImageMagick-config-6-SUSE
ImageMagick-devel
libMagickCore-6_Q16-1-debuginfo
libMagick++-devel
libMagickCore-6_Q16-1
libMagickWand-6_Q16-1
ImageMagick-debugsource
libMagickWand-6_Q16-1-debuginfo
ImageMagick-config-6-upstream
imagemagick (Debian package)
ImageMagick
ImageMagick-c++
ImageMagick-c++-devel
ImageMagick-perl
ImageMagick-help
ImageMagick-extra-debuginfo
ImageMagick-extra
libMagickCore-7_Q16HDRI10-debuginfo
libMagick++-7_Q16HDRI5-debuginfo
ImageMagick-config-7-SUSE
libMagickWand-7_Q16HDRI10-debuginfo
perl-PerlMagick-debuginfo
libMagickWand-7_Q16HDRI10
libMagickWand-7_Q16HDRI10-64bit-debuginfo
libMagickCore-7_Q16HDRI10-32bit
libMagick++-devel-32bit
libMagickCore-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit
libMagick++-7_Q16HDRI5-32bit-debuginfo
ImageMagick-devel-32bit
libMagick++-7_Q16HDRI5-32bit
ImageMagick-doc
ImageMagick-devel-64bit
libMagick++-7_Q16HDRI5-64bit-debuginfo
libMagick++-7_Q16HDRI5-64bit
libMagickCore-7_Q16HDRI10-64bit-debuginfo
libMagickWand-7_Q16HDRI10-64bit
libMagick++-devel-64bit
libMagickCore-7_Q16HDRI10-64bit
ImageMagick-config-7-upstream
libMagick++-7_Q16HDRI5
perl-PerlMagick
libMagickCore-7_Q16HDRI10
ImageMagick-config-7-upstream-secure
ImageMagick-config-7-upstream-open
ImageMagick-config-7-upstream-websafe
ImageMagick-config-7-upstream-limited
ImageMagick-libs
ImageMagick-djvu

How to mitigate CVE-2026-25796

Install updates from vendor's website.

ImageMagick - addressed in versions 6.9.13-40, 7.1.2-15
imagemagick (Ubuntu package) - addressed in versions 8:6.7.7.10-6ubuntu3.13+esm20, 8:6.7.7.10-6ubuntu3.13+esm21, 8:6.8.9.9-7ubuntu5.16+esm19, 8:6.8.9.9-7ubuntu5.16+esm20, 8:6.9.7.4+dfsg-16ubuntu6.15+esm11, 8:6.9.7.4+dfsg-16ubuntu6.15+esm12, 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm9, 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm10, 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm9, 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm10, 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm8, 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm9, 8:7.1.2.3+dfsg1-1ubuntu0.1
ImageMagick-debuginfo - addressed in versions 6.8.8.1-71.231.1, 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-6-SUSE - update to 6.8.8.1-71.231.1
ImageMagick-devel - addressed in versions 6.8.8.1-71.231.1, 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickCore-6_Q16-1-debuginfo - update to 6.8.8.1-71.231.1
libMagick++-devel - addressed in versions 6.8.8.1-71.231.1, 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickCore-6_Q16-1 - update to 6.8.8.1-71.231.1
libMagickWand-6_Q16-1 - update to 6.8.8.1-71.231.1
ImageMagick-debugsource - addressed in versions 6.8.8.1-71.231.1, 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickWand-6_Q16-1-debuginfo - update to 6.8.8.1-71.231.1
ImageMagick-config-6-upstream - update to 6.8.8.1-71.231.1
imagemagick (Debian package) - addressed in versions 8:6.9.11.60+dfsg-1.6+deb12u7, 8:6.9.11.60+dfsg-1.6+deb12u8, 8:7.1.1.43+dfsg1-1+deb13u6
ImageMagick - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-c++ - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-c++-devel - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-debuginfo - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-debugsource - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-devel - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-perl - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-help - addressed in versions 6.9.13.40-1, 7.1.2.15-1
ImageMagick-extra-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
ImageMagick-extra - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickCore-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagick++-7_Q16HDRI5-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-7-SUSE - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickWand-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
perl-PerlMagick-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickWand-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickWand-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickCore-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-devel-32bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickCore-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickWand-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickWand-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-7_Q16HDRI5-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
ImageMagick-devel-32bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-7_Q16HDRI5-32bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
ImageMagick-doc - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
ImageMagick-devel-64bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-7_Q16HDRI5-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-7_Q16HDRI5-64bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickCore-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickWand-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagick++-devel-64bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
libMagickCore-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2
ImageMagick-config-7-upstream - update to 7.1.0.9-150400.6.68.2
libMagick++-7_Q16HDRI5 - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
perl-PerlMagick - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
libMagickCore-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.68.2, 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-7-upstream-secure - addressed in versions 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-7-upstream-open - addressed in versions 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-7-upstream-websafe - addressed in versions 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-config-7-upstream-limited - addressed in versions 7.1.1.21-150600.3.42.2, 7.1.1.43-150700.3.37.1
ImageMagick-perl - update to 7.1.2.15-1
ImageMagick-libs - update to 7.1.2.15-1
ImageMagick-doc - update to 7.1.2.15-1
ImageMagick-djvu - update to 7.1.2.15-1
ImageMagick-devel - update to 7.1.2.15-1
ImageMagick-c++-devel - update to 7.1.2.15-1
ImageMagick-c++ - update to 7.1.2.15-1
ImageMagick - update to 7.1.2.15-1

External References

Related Security Bulletins