CVE-2026-106112
ImageSharp: ICC LUT16 output channel count can write beyond Vector4
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
ImageSharp is a 2D graphics library. From 4.0.0 until 4.1.2, ICC LUT16 conversion accepts more than four output channels even though ClutCalculator.Calculate and LutEntryCalculator.CalculateLut store intermediate and output values in Vector4. When DecoderOptions.ColorProfileHandling is set to Convert, a malformed embedded profile can direct interpolation and output-LUT operations to write one float per declared channel beyond the four-float destination. This can corrupt memory and terminate the process; the default Preserve mode does not run ICC conversion. This issue is fixed in version 4.1.2.
| CWE | CWE-787 |
| Vendor | sixlabors |
| Product | imagesharp |
| Published | Oct 6, 2026 |
| Last Updated | Oct 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
SixLabors / ImageSharp
>= 4.0.0, < 4.1.2
References
github.com: https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-ffp7-56pq-64mr github.com: https://github.com/SixLabors/ImageSharp/pull/3187 github.com: https://github.com/SixLabors/ImageSharp/commit/b03f0ed7e5be760eecc740fa53dd166b18ae9b23 github.com: https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2