CVE-2026-106114 ImageSharp: ICC CLUT parsing allocates from unvalidated channel and grid dimensions
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-106114?
CVE-2026-106114 is a medium-severity vulnerability in SixLabors ImageSharp, published on 6 Oct 2026.
Official description
ImageSharp is a 2D graphics library. From 1.0.0-beta0001 until 4.1.2, ICC CLUT parsing calculates allocation sizes from attacker-declared channel and grid dimensions before confirming that the profile contains the declared values. IccDataReader.ReadClutF32 can request a large float array, and earlier public IccProfile.Entries parsing paths can allocate a large jagged representation, from a short truncated profile. In version 4, automatic image conversion reaches the parser when DecoderOptions.ColorProfileHandling is Convert; the default Preserve mode avoids that conversion path. The demonstrated impact is memory pressure and input-validation failure, not unhandled process termination. This issue is fixed in version 4.1.2.
Weakness: CWE-789
Which versions are affected by CVE-2026-106114?
4 open source packages ship an affected version, including SixLabors.ImageSharp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
SixLabors.ImageSharp NuGet | From 1.0.0-beta0001 | 3.2.0 |
SixLabors.ImageSharp NuGet | From 1.0.0-beta0001 | 3.2.0 |
SixLabors.ImageSharp NuGet | From 4.0.0 | 4.1.2 |
SixLabors.ImageSharp NuGet | From 4.0.0 | 4.1.2 |
Products include Sixlabors Imagesharp.
How do I fix CVE-2026-106114?
Upgrade SixLabors.ImageSharp to a fixed version for your release line: 3.2.0 or 4.1.2.
Is CVE-2026-106114 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-106114 exists.
Other vulnerabilities in SixLabors ImageSharp
- CVE-2026-106110 ImageSharp: TIFF CCITT T4 encoder can write past its compressed output buffer
- CVE-2026-106112 ImageSharp: ICC LUT16 output channel count can write beyond Vector4
- CVE-2026-106113 ImageSharp: HistogramEqualization uses an unvalidated luminance as an unchecked histogram index
- CVE-2026-106115 ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer
- CVE-2026-106117 ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp
Sources
Also known as ECHO-952c-9f86-5714, GHSA-gwg2-r3hj-4w44.