CVE-2026-46557

Service crash via unbounded fx expression recursion

Published Jun 10, 2026 · Updated Jun 10, 2026

Uncontrolled recursion in ImageMagick before 7.1.2-23 allows local users to crash an image-processing process via a crafted fx argument. The fx expression evaluator recursively descends attacker-supplied expression structure without enforcing a depth limit, exhausting the process stack. The argument must reach a local ImageMagick invocation; the documented consequence is process termination without confidentiality or integrity impact.

CVSS severity6.2
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in ImageMagick before 7.1.2-23 allows local users to crash an image-processing process via a crafted fx argument. The fx expression evaluator recursively descends attacker-supplied expression structure without enforcing a depth limit, exhausting the process stack. The argument must reach a local ImageMagick invocation; the documented consequence is process termination without confidentiality or integrity impact.

The record

CVE
CVE-2026-46557
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
ImageMagick Studio LLC
Product
ImageMagick
Classifications
CWE-674, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.1.2-23

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ImageMagick Studio LLC · ImageMagickversion=< 7.1.2-23

Published CVSS scores

6.2GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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