CVE-2026-61858
Received Received - Intake

APNG Policy Bypass in ImageMagick

Publication date: 2026-07-11

Last updated on: 2026-07-11

Assigner: VulnCheck

Description
ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and external delegates due to missing validation checks. Attackers can write files to disallowed paths by bypassing configured policy restrictions through the APNG encoding process.

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Meta Information

Published
2026-07-11
Last Modified
2026-07-11
Generated
2026-07-11
AI Q&A
2026-07-11
EPSS Evaluated
N/A
NVD
CVE-2026-61858
EUVD
EUVD-2026-43187

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
imagemagick imagemagick to 7.1.2-26 (exc)
image_magick image_magick to 7.1.2-26 (exc)
image_magick image_magick to 6.9.13-51 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-59 The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

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Executive Summary

This vulnerability is a policy bypass issue in ImageMagick's APNG encoder and its external delegates caused by missing validation checks.

It allows an attacker to bypass configured policy restrictions and write files to disallowed paths during the APNG encoding process.

Impact Analysis

The vulnerability can lead to unauthorized modification of data (low integrity compromise) by allowing attackers to write files to restricted locations.

Confidentiality and availability are not affected by this vulnerability.

The attack requires local access, has low complexity, and does not require user interaction or elevated privileges.

Mitigation Strategies

To mitigate this vulnerability, update ImageMagick to version 7.1.2-26 or later, or 6.9.13-51 or later, where the issue has been patched.

Ensure that policy restrictions are properly enforced and validated to prevent bypass through the APNG encoder and external delegates.

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