PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-46520 ImageMagick CVE debrief

CVE-2026-46520 is a HIGH severity vulnerability in ImageMagick, a free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, when reading multiple images with different dimensions, an out of bounds heap write can occur. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.

Vendor
ImageMagick
Product
Unknown
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-10
Original CVE updated
2026-07-15
Advisory published
2026-06-10
Advisory updated
2026-07-15

Who should care

Users of ImageMagick, especially those who process multiple images with different dimensions, should upgrade to versions 6.9.13-48 or 7.1.2-23 to prevent potential out of bounds heap writes.

Technical summary

The vulnerability occurs when ImageMagick reads multiple images with different dimensions, allowing for an out of bounds heap write. The CVSS score for this vulnerability is 7.5, indicating a HIGH severity level.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to ImageMagick version 6.9.13-48 or 7.1.2-23 or later.
  • Review and update any dependent software or systems that utilize ImageMagick.

Evidence notes

The vulnerability was patched in versions 6.9.13-48 and 7.1.2-23. Users can refer to the vendor advisory at [ref-4] for more information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46520 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46520

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46520 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46520

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.