{"id":"CVE-2026-106118","revision":"41971c096da6421fbe17d8fef79f90c7","records":[{"revision":"41971c096da6421fbe17d8fef79f90c7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106118","aliases":[],"title":"ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write","description":"ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, tiled TIFF decoding allocates a destination buffer using TileWidth but TiffDecompressorsFactory.Create constructs T4, T6, and Modified Huffman decompressors using the full frame width. TiffDecoderCore.DecodeTilesChunky can therefore direct frame-width fax scanlines into a tile-width buffer when TileWidth is smaller than ImageWidth. The mismatch causes attacker-controlled out-of-bounds writes, heap corruption, and process termination even with legal per-row run codes. This tiled-path vulnerability is distinct from oversized CCITT runs in strip decoding. This issue is fixed in version 4.1.1.","state":0,"publishedAt":"2026-10-06T17:59:02.778+00:00","modifiedAt":"2026-10-06T19:29:39.226+00:00","affected":[{"ecosystem":"Vendor product","name":"ImageSharp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SixLabors\",\n                    \"product\": \"ImageSharp\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 3.0.0, < 4.1.1\",\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-v76p-62qx-wwq2","https://github.com/SixLabors/ImageSharp/pull/3176","https://github.com/SixLabors/ImageSharp/commit/9ee7d1dd5b62d8c9f16cc755e76828386bc2191f","https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106118","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106118","identifiers":["CVE-2026-106118"]},"retained":false,"historicalAffected":[]}],"coverage":[]}