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ImageMagick CVE-2026-86420

| EUVDEUVD-2026-72378 MEDIUM
Uncontrolled Resource Consumption (CWE-400)
2026-09-07 VulnCheck GHSA-7xg2-fjfx-cprr
Denial Of Service Red Hat Imagemagick Suse
6.3
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
6.3 MEDIUM
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
3.7 LOW

Network-reachable but requires repeated crafted inputs to accumulate budget leak; availability impact is low (process degradation, not immediate crash).

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SUSE
3.7 LOW
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
3.7 LOW
qualitative

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Sep 07, 2026 - 14:02 EUVD
Analysis Generated
Sep 07, 2026 - 13:38 vuln.today
CVE Published
Sep 07, 2026 - 12:53 cve.org
MEDIUM 6.3

DescriptionCVE.org

ImageMagick before 7.1.2-30 and 6.9.13-55 fails to properly lower the memory budget when an operation inside OpenPixelCache fails. Repeated triggering of such failures can exhaust the process memory budget and result in a denial of service.

AnalysisAI

Memory budget exhaustion in ImageMagick's OpenPixelCache allows remote unauthenticated attackers to cause a process-level denial of service by repeatedly triggering internal cache operation failures. Affected versions span both the 7.x branch (before 7.1.2-30) and the legacy 6.x branch (before 6.9.13-55), covering a large installed base of web services that process user-supplied images. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires the ability to submit image processing requests to a service that uses an affected version of ImageMagick (before 7.1.2-30 or 6.9.13-55). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 6.3 with vector AV:N/AC:H/AT:P/PR:N/UI:N reflects the moderate-to-nuanced risk profile: the attack is network-reachable and requires no authentication, but the high attack complexity (AC:H) and prerequisite condition (AT:P) indicate that reliably triggering the failure path inside OpenPixelCache is non-trivial. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade ImageMagick to version 7.1.2-30 or later on the 7.x branch, or to version 6.9.13-55 or later on the 6.x branch, as documented in the GitHub Security Advisory at https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4mwf-mggw-29vp. … Detailed patch versions, workarounds, and compensating controls in full report.
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Vendor StatusVendor

SUSE

Severity: Low
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 12 Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP7 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 Not-Affected

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CVE-2026-86420 vulnerability details – vuln.today
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