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CVE-2026-123273ImageMagick before 7.1.2-35 and 6.9.13-60 Infinite Loop via SVG Decoder
ImageMagick before 7.1.2-35 and 6.9.13-60 contains an infinite loop vulnerability in the SVG decoder because QueueAuthenticPixelCacheNexus in MagickCore/cache.c fails to validate requested region width and height. Attackers can supply a crafted SVG image that repeatedly requests a non-advancing pixel region, consuming CPU and hanging the decoding worker.
7.1 HIGHEPSS 0.34%Not in KEVNVD: Undergoing Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.1 | HIGH | 4.0VulnCheck (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| 6.5 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-123273
- Status
- Undergoing Analysis
- Assigner (CNA)
- VulnCheck
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 19:17 UTC
- Weaknesses
- CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Affected Products
As published by the CNA in the CVE record.
ImageMagickImageMagick2 version ranges
- 7.0.0 before 7.1.2-35
- before 6.9.13-60
References
- github.com https://github.com/ImageMagick/ImageMagick/blob/3a9639c0bd21f61f22fcce4c5f6838f1f0d8f738/MagickCore/cache.c#L4348
- github.com https://github.com/ImageMagick/ImageMagick/commit/c5f2c6c9fb1458f960a506691c9351e9da6d2247
- github.com https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-35
- github.com https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q66g-3m63-78mh
- github.com https://github.com/ImageMagick/ImageMagick6/commit/712e523e7f746d35c963b78555e1c24364a9426e
- github.com https://github.com/ImageMagick/ImageMagick6/releases/tag/6.9.13-60
- vulncheck.com https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-35-and-6.9.13-60-infinite-loop-via-svg-decoder