CVE-2026-106114
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.
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 0.33% probability · 26th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-789
- Affected
- sixlabors/imagesharp
- Source
- security-advisories@github.com
EPSS moved from 0.4% on 7 October 2026 to 0.3% on 27 October 2026.
References
- https://github.com/SixLabors/ImageSharp/commit/8de892a7623aa8a09ba2333b624c8d2eb98325dfPatch
- https://github.com/SixLabors/ImageSharp/pull/3187Issue Tracking, Patch
- https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2Release Notes
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-gwg2-r3hj-4w44Exploit, Vendor Advisory
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-gwg2-r3hj-4w44Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.