ImageMagick up to 6.9.13-43/7.1.2-18 PNG Encoder memory leak

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.65

Summaryinfo

A vulnerability identified as problematic has been detected in ImageMagick up to 6.9.13-43/7.1.2-18. This vulnerability affects unknown code of the component PNG Encoder. This manipulation causes memory leak. This vulnerability appears as CVE-2026-56365. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in ImageMagick up to 6.9.13-43/7.1.2-18. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component PNG Encoder. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-56365 since 06/20/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 6.9.13-44 or 7.1.2-19 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

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: 3.4
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
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 6.9.13-44/7.1.2-19

Timelineinfo

06/20/2026 CVE reserved
07/01/2026 +11 days Advisory disclosed
07/01/2026 +0 days VulDB entry created
07/01/2026 +0 days VulDB entry last update

Sourcesinfo

Product: imagemagick.org

Advisory: GHSA-x928-4434-crqj
Status: Confirmed

CVE: CVE-2026-56365 (🔒)
GCVE (CVE): GCVE-0-2026-56365
GCVE (VulDB): GCVE-100-375433

Entryinfo

Created: 07/01/2026 10:23
Changes: 07/01/2026 10:23 (77)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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