CVE-2026-106112

ImageSharp: ICC LUT16 output channel count can write beyond Vector4

Published Oct 6, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-ffp7-56pq-64mr ImageSharp: ICC LUT16 output channel count can write beyond Vector4
History
Type Values Removed Values Added
CPEs cpe:2.3:a:sixlabors:imagesharp:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Sixlabors
Sixlabors imagesharp
Vendors & Products Sixlabors
Sixlabors imagesharp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title ImageSharp: ICC LUT16 output channel count can write beyond Vector4
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 6, 2026, 6:22 PM
Reserved
Oct 6, 2026, 3:33 PM
Status
Analyzed
Published
Oct 6, 2026, 6:16 PM
Modified
Oct 24, 2026, 1:36 AM