CVE-2026-106113ImageSharp: HistogramEqualization uses an unvalidated luminance as an unchecked histogram index
Updated under an hour ago ()
Does this affect you?
It affects SixLabors ImageSharp. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.35%, higher than 27% of scored CVEs.
Do this next
Free account, 1 product
ImageSharp is a 2D graphics library. From 2.0.0 until 4.1.2, decoding an attacker-supplied 32-bit floating-point TIFF as Image<HalfVector4> and applying HistogramEqualization can produce a non-finite or out-of-range luminance in ColorNumerics.GetBT709Luminance. GrayscaleLevelsRowOperation.Invoke uses the resulting value as an unchecked histogram offset, causing an unsafe out-of-range access and process termination. Adaptive Histogram Equalization and AutoLevel are not affected by this report. This issue is fixed in version 4.1.2.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.35% (percentile 27)
- Assigned by
- GitHub_M
- NVD analysis
- Undergoing Analysis
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
SixLabors ImageSharp sixlabors:imagesharp (from the name) | from 2.0.0, < 4.1.2 | CNA record |
References
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-j3p4-wp97-rph4x-refsource-confirm
- https://github.com/SixLabors/ImageSharp/pull/3187x-refsource-misc
- https://github.com/SixLabors/ImageSharp/commit/c4c4bf292298c026df470db1a17ff826515fd95dx-refsource-misc
- https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.