{"id":"CVE-2025-54575","aliases":["GHSA-rxmq-m78w-7wmc"],"url":"https://o3.security/vulnerability/CVE-2025-54575","summary":"ImageSharp Triggers an Infinite Loop in its GIF Decoder When Skipping Malformed Comment Extension Blocks","details":"ImageSharp is a 2D graphics library. In versions below 2.1.11 and 3.0.0 through 3.1.10, a specially crafted GIF file containing a malformed comment extension block (with a missing block terminator) can cause the ImageSharp GIF decoder to enter an infinite loop while attempting to skip the block. This leads to a denial of service. Applications processing untrusted GIF input should upgrade to a patched version. This issue is fixed in versions 2.1.11 and 3.1.11.","published":"2025-07-30T19:55:16.248Z","modified":"2026-08-12T03:51:16.608883181Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"SixLabors.ImageSharp","fixedVersion":"2.1.11"},{"ecosystem":"NuGet","name":"SixLabors.ImageSharp","fixedVersion":"3.1.11"}],"fix":{"url":"https://github.com/SixLabors/ImageSharp/commit/55e49262df9a057dff9b7807ed1b7bdb49187c3f","label":"SixLabors/ImageSharp@55e4926"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54575.json"},{"type":"ADVISORY","url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-rxmq-m78w-7wmc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54575"},{"type":"REPORT","url":"https://github.com/SixLabors/ImageSharp/issues/2953"},{"type":"FIX","url":"https://github.com/SixLabors/ImageSharp/commit/55e49262df9a057dff9b7807ed1b7bdb49187c3f"},{"type":"FIX","url":"https://github.com/SixLabors/ImageSharp/commit/833f3ceec35af6b775950e06f03b934546cefbf6"},{"type":"PACKAGE","url":"https://github.com/SixLabors/ImageSharp"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.608883181Z"}}