CVEvulnerability
CVE-2026-106115
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-06
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-787
Description
ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2.
Affected configurations
• sixlabors imagesharp (>= 2.1.0 < 3.2.0)
• sixlabors imagesharp (>= 4.0.0 < 4.1.2)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95 Patch
- https://github.com/SixLabors/ImageSharp/pull/3187 Issue Tracking, Patch
- https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2 Release Notes
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w Exploit, Vendor Advisory
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w Exploit, Vendor Advisory