{"id":"CVE-2026-106115","revision":"76e00a4b43244bb4abdb46b9e0393a18","records":[{"revision":"76e00a4b43244bb4abdb46b9e0393a18","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106115","aliases":[],"title":"ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer","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.","state":0,"publishedAt":"2026-10-06T17:50:15.754+00:00","modifiedAt":"2026-10-09T01:20:52.111+00:00","affected":[{"ecosystem":"Vendor product","name":"ImageSharp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SixLabors\",\n                    \"product\": \"ImageSharp\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.1.0, < 4.1.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w","https://github.com/SixLabors/ImageSharp/pull/3187","https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95","https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106115","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106115","identifiers":["CVE-2026-106115"]},"retained":false,"historicalAffected":[]}],"coverage":[]}