Buffer overflow in Sixlabors Imagesharp
CVE-2026-106113
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Sixlabors Imagesharp — versions >= 2.0.0, < 4.1.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-106113?
- CVE-2026-106113 is a high-severity vulnerability in Sixlabors Imagesharp, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-10-06.
- How severe is CVE-2026-106113?
- High severity. CVSS v3 base score is 7.5 out of 10.