ImageMagick prior 7.1.2-30/6.9.13-55 MSL image decoder memory leak

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k1.48-

Summaryinfo

A vulnerability was found in ImageMagick and classified as problematic. This vulnerability affects unknown code of the component MSL image decoder. Such manipulation leads to memory leak. This vulnerability is listed as CVE-2026-86421. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in ImageMagick and classified as problematic. Affected by this issue is an unknown code of the component MSL image decoder. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. CVE summarizes:

ImageMagick before 7.1.2-30 and 6.9.13-55 contains a memory leak in the MSL image decoder. A crafted MSL image triggers memory allocation without proper deallocation, allowing an attacker to exhaust memory and cause a denial of service.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-86421 since 09/07/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 7.1.2-30 or 6.9.13-55 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: ImageMagick 7.1.2-30/6.9.13-55

Timelineinfo

09/07/2026 Advisory disclosed
09/07/2026 +0 days CVE reserved
09/07/2026 +0 days VulDB entry created
09/07/2026 +0 days VulDB entry last update

Sourcesinfo

Product: imagemagick.org

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-86421 (🔒)
GCVE (CVE): GCVE-0-2026-86421
GCVE (VulDB): GCVE-100-399578

Entryinfo

Created: 09/07/2026 15:17
Changes: 09/07/2026 15:17 (75)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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