{"id":"CVE-2026-106116","revision":"6cfb1c4644184f5396c27d8f324d11ed","records":[{"revision":"6cfb1c4644184f5396c27d8f324d11ed","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106116","aliases":[],"title":"ImageSharp: BigTIFF IFD count can keep a decoder thread in a non-progressing loop","description":"ImageSharp is a 2D graphics library. From 2.0.0 until 4.1.2, ExifReader.ReadValues64 trusts the 64-bit BigTIFF IFD entry count and iterates once per declared entry. When fewer than 20 bytes remain, ExifReader.ReadValue64 returns without advancing the stream or terminating the outer loop, so a small malformed BigTIFF can keep one decoder thread executing for an attacker-controlled duration. This report does not claim worker-pool exhaustion. This issue is fixed in version 4.1.2.","state":0,"publishedAt":"2026-10-06T17:51:36.366+00:00","modifiedAt":"2026-10-06T18:21:55.088+00:00","affected":[{"ecosystem":"Vendor product","name":"ImageSharp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SixLabors\",\n                    \"product\": \"ImageSharp\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.0.0, < 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:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","https://github.com/SixLabors/ImageSharp/pull/3187","https://github.com/SixLabors/ImageSharp/commit/92b12d72550ebb6be5b1e22e559c361fd863a6ec","https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106116","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106116","identifiers":["CVE-2026-106116"]},"retained":false,"historicalAffected":[]}],"coverage":[]}