Home / mailings [USN-8739-2] ImageMagick vulnerabilities
Posted on 15 September 2026
Ubuntu Security==========================================================================Ubuntu Security Notice USN-8739-2
September 14, 2026
imagemagick vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
Summary:
Several security issues were fixed in ImageMagick.
Software Description:
- imagemagick: Image manipulation programs and library
Details:
USN-8739-1 fixed vulnerabilities in ImageMagick. This update provides the
corresponding fixes for Ubuntu 24.04 LTS.
Original advisory details:
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service. This
issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-56366, CVE-2026-56368,
CVE-2026-56371, CVE-2026-56373)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and
Ubuntu 26.04 LTS. (CVE-2026-56370)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service or
expose sensitive information. This issue only affected Ubuntu 14.04 LTS,
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04
LTS. (CVE-2026-56378)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to execute arbitrary code. This
issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-56379)
It was discovered that ImageMagick incorrectly handled memory allocation
in certain operations. An attacker could possibly use this issue to cause
a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 26.04 LTS.
(CVE-2026-61465)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service. This
issue only affected Ubuntu 22.04 LTS and Ubuntu 26.04 LTS.
(CVE-2026-61857)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2026-61863, CVE-2026-61864, CVE-2026-61865, CVE-2026-61870)
It was discovered that ImageMagick incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service. This
issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-61866)
It was discovered that ImageMagick incorrectly handled certain images on
32-bit systems. An attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS,
and Ubuntu 26.04 LTS. (CVE-2026-62946)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
imagemagick 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
imagemagick-6-common 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
imagemagick-6.q16 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
imagemagick-6.q16hdri 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libimage-magick-perl 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libimage-magick-q16-perl 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libimage-magick-q16hdri-perl 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-6-headers 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-6.q16-9t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-6.q16-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-6.q16hdri-9t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-6.q16hdri-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagick++-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6-arch-config 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6-headers 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16-7-extra 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16-7t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16hdri-7-extra 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16hdri-7t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-6.q16hdri-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickcore-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-6-headers 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-6.q16-7t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-6.q16-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-6.q16hdri-7t64 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-6.q16hdri-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
libmagickwand-dev 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
perlmagick 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8739-2
https://ubuntu.com/security/notices/USN-8739-1
CVE-2026-56366, CVE-2026-56368, CVE-2026-56370, CVE-2026-56371,
CVE-2026-56373, CVE-2026-56378, CVE-2026-56379, CVE-2026-61465,
CVE-2026-61857, CVE-2026-61863, CVE-2026-61864, CVE-2026-61865,
CVE-2026-61866, CVE-2026-61870, CVE-2026-62946
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