Heap-based buffer overflow in ImageMagick - CVE-2026-23876

Vulnerability identifier: #VU121674

CSH Severity: High

CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-23876

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the XBM image decoder. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

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

Install updates from vendor's website.

ImageMagick - addressed in versions 6.9.13-38, 7.1.2-13
imagemagick (Ubuntu package) - addressed in versions 8:6.7.7.10-6ubuntu3.13+esm18, 8:6.8.9.9-7ubuntu5.16+esm17, 8:6.9.7.4+dfsg-16ubuntu6.15+esm9, 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm7, 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm7, 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm6
ImageMagick-devel - addressed in versions 6.8.8.1-71.227.1, 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagickCore-6_Q16-1 - update to 6.8.8.1-71.227.1
libMagickCore-6_Q16-1-debuginfo - update to 6.8.8.1-71.227.1
libMagickWand-6_Q16-1-debuginfo - update to 6.8.8.1-71.227.1
ImageMagick-debugsource - addressed in versions 6.8.8.1-71.227.1, 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-6-SUSE - update to 6.8.8.1-71.227.1
libMagickWand-6_Q16-1 - update to 6.8.8.1-71.227.1
ImageMagick-debuginfo - addressed in versions 6.8.8.1-71.227.1, 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-6-upstream - update to 6.8.8.1-71.227.1
libMagick++-devel - addressed in versions 6.8.8.1-71.227.1, 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-perl - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick-c++ - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick-c++-devel - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick-devel - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick-doc - addressed in versions 6.9.10.68-10, 7.1.2.8-6
ImageMagick (Red Hat package) - update to 6.9.10.68-10.el7_9
imagemagick (Debian package) - addressed in versions 8:6.9.11.60+dfsg-1.6+deb12u6, 8:7.1.1.43+dfsg1-1+deb13u5
ImageMagick - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-c++ - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-c++-devel - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-debuginfo - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-debugsource - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-devel - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-perl - addressed in versions 6.9.13.38-1, 7.1.2.13-1
ImageMagick-help - addressed in versions 6.9.13.38-1, 7.1.2.13-1
libMagickWand-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickWand-7_Q16HDRI10-32bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagick++-devel-32bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagick++-7_Q16HDRI5-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagick++-7_Q16HDRI5-32bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
ImageMagick-devel-32bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
ImageMagick-doc - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
ImageMagick-config-7-SUSE - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagick++-7_Q16HDRI5-64bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagick++-7_Q16HDRI5-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickWand-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
ImageMagick-devel-64bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagick++-devel-64bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10-64bit - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10-64bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickWand-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagickWand-7_Q16HDRI10-32bit-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagickWand-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
perl-PerlMagick - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
perl-PerlMagick-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagick++-7_Q16HDRI5-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-7-upstream - update to 7.1.0.9-150400.6.64.1
ImageMagick-extra - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
ImageMagick-extra-debuginfo - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1
libMagickCore-7_Q16HDRI10 - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
libMagick++-7_Q16HDRI5 - addressed in versions 7.1.0.9-150400.6.64.1, 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-7-upstream-secure - addressed in versions 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-7-upstream-websafe - addressed in versions 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-7-upstream-limited - addressed in versions 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-config-7-upstream-open - addressed in versions 7.1.1.21-150600.3.38.1, 7.1.1.43-150700.3.33.1
ImageMagick-libs - update to 7.1.2.8-6
ImageMagick-djvu - update to 7.1.2.8-6

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8

• Multiple vulnerabilities in ImageMagick
• openEuler 24.03 LTS SP3 update for ImageMagick
• openEuler 24.03 LTS SP2 update for ImageMagick
• openEuler 24.03 LTS SP1 update for ImageMagick
• openEuler 24.03 LTS update for ImageMagick
• openEuler 22.03 LTS SP4 update for ImageMagick
• openEuler 20.03 LTS SP4 update for ImageMagick
• Debian update for imagemagick
• SUSE update for ImageMagick
• Ubuntu update for imagemagick
• SUSE update for ImageMagick
• SUSE update for ImageMagick
• SUSE update for ImageMagick
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for ImageMagick
• Anolis OS update for ImageMagick
• Anolis OS update for ImageMagick