CVE-2026-32259: ImageMagick has a possible stack buffer overflow in sixel encoder

Published Mar 12, 2026
·
Updated

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-16 and 6.9.13-41, when a memory allocation fails in the sixel encoder it would be possible to write past the end of a buffer on the stack. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

Affected Software

7 affected componentsFixes available
ImageMagick ImageMagick<7.1.2-16
ImageMagick ImageMagick<6.9.13-41
ImageMagick ImageMagick<6.9.13-41
ImageMagick ImageMagick>=7.0.0-0<7.1.2-16
alpine/imagemagick>=7.0.0-0<7.1.2.17-r0
7.1.2.17-r0
alpine/imagemagick>=7.0.0-0<7.1.2.17-r0
7.1.2.17-r0
debian/imagemagick
8:6.9.11.60+dfsg-1.6+deb12u118:6.9.11.60+dfsg-1.6+deb12u158:7.1.1.43+dfsg1-1+deb13u128:7.1.1.43+dfsg1-1+deb13u148:7.1.2.34+dfsg1-18:7.1.2.35+dfsg1-2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade alpine/imagemagick to a version that resolves this vulnerability.

    Fixed in 7.1.2.17-r0
  2. Upgrade

    Upgrade debian/imagemagick to a version that resolves this vulnerability.

    Fixed in 8:6.9.11.60+dfsg-1.6+deb12u11Fixed in 8:6.9.11.60+dfsg-1.6+deb12u15Fixed in 8:7.1.1.43+dfsg1-1+deb13u12Fixed in 8:7.1.1.43+dfsg1-1+deb13u14Fixed in 8:7.1.2.34+dfsg1-1Fixed in 8:7.1.2.35+dfsg1-2
  3. Upgrade

    Upgrade ImageMagick to a version that resolves this vulnerability.

    Fixed in 7.1.2-16
  4. Upgrade

    Upgrade ImageMagick to a version that resolves this vulnerability.

    Fixed in 6.9.13-41

Event History

Mar 12, 2026
CVE Published
via MITRE·07:38 PM
Data Sourced
via MITRE·07:38 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:16 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·08:16 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2026-32259?

CVE-2026-32259 has been classified as a high severity vulnerability due to the potential for stack buffer overflow.

2

How do I fix CVE-2026-32259?

To fix CVE-2026-32259, upgrade ImageMagick to version 7.1.2-16 or 6.9.13-41 or later.

3

What impact does CVE-2026-32259 have on ImageMagick?

CVE-2026-32259 may allow an attacker to execute arbitrary code on systems using affected versions of ImageMagick.

4

What versions of ImageMagick are affected by CVE-2026-32259?

CVE-2026-32259 affects versions of ImageMagick prior to 7.1.2-16 and 6.9.13-41.

5

How can I determine if my installation of ImageMagick is vulnerable to CVE-2026-32259?

You can determine if your ImageMagick installation is vulnerable by checking the installed version against the affected versions listed under CVE-2026-32259.

Company

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Contact

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