{"id":"CVE-2026-106116","published":"2026-10-06T18:16:53.400","lastModified":"2026-10-06T20:03:40.690","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.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-835"],"vendors":[],"products":[],"references":[{"url":"https://github.com/SixLabors/ImageSharp/commit/92b12d72550ebb6be5b1e22e559c361fd863a6ec","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/pull/3187","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":[]}],"exploitRefs":[{"url":"https://github.com/SixLabors/ImageSharp/commit/92b12d72550ebb6be5b1e22e559c361fd863a6ec","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/pull/3187","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":[]},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":[]}],"hasPoc":true,"ai":null}