CVE-2026-61866
highpriority · track · 30EPSS 0.002 · 8 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 0.5–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (26)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2100ImageMagick: Mehrere SchwachstellenDeutsch2026-06-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
- GHSA-99w9-hv66-rfv7ImageMagick: Memory Leak in JNG encoder when a blob could not be opened2026-07-24ghsa · osvUS
When a blob can not be opened a memory leak will occur when encoding a JNG file.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-99w9-hv66-rfv7cnnvd
- https://www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-jng-encodercnnvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-99w9-hv66-rfv7enisa_euvd
- https://www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-jng-encoderenisa_euvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-99w9-hv66-rfv7Vendor Advisorynvd
- https://www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-jng-encoderThird Party Advisorynvd
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