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.
The problem has been patched. All users are advised to upgrade to v3.1.11 or v2.1.11.
None.
{
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed_at": "2025-07-30T13:23:01Z",
"nvd_published_at": "2025-07-30T20:15:37Z",
"severity": "MODERATE",
"github_reviewed": true
}