CVE-2026-61866 PUBLISHED

ImageMagick before 7.1.2-26 Memory Leak in JNG encoder

Assigner: VulnCheck
Reserved: 10.07.2026 Published: 15.07.2026 Updated: 15.07.2026

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the JNG encoder when a blob cannot be opened. Attackers can trigger the memory leak by providing malformed JNG files that fail blob operations, causing resource exhaustion.

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 2.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 2.9

Attack Vector	Local	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	ImageMagick
Product	ImageMagick
Versions	Default: unaffected affected from 0 to 7.1.2-26 (excl.) Version 7.1.2-26 is unaffected

References

Problem Types

Missing Release of Memory after Effective Lifetime CWE