ImageMagick has a possible infinite loop in its JPEG encoder when using `jpeg:extent`
A `continue` statement in the JPEG extent binary search loop in the jpeg encoder causes an infinite loop when writing persistently fails. An attacker can trigger a 100% CPU consumption and process hang (Denial of Service) with a crafted image.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-26283US | high7.5 | — | ||
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a `continue` statement in the JPEG extent b… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/ImageMagick/ImageMagickPACKAGE
- https://github.com/ImageMagick/ImageMagick/commit/c448c6920a985872072fc7be6034f678c087de9bWEB
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gwr3-x37h-h84vWEB
- https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-26283ADVISORY
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