{
"id": "GHSA-xrx5-jvp4-rqmj",
"aliases": [
"CVE-2026-85181"
],
"details": "CAT uses Java String.hashCode as the sole integrity check for session cookies without server-side keying, allowing attackers to forge valid checksums offline. Attackers can set the x-forwarded-for header to bypass IP binding validation and create admin sessions with full configuration access.",
"affected": [],
"modified": "2026-09-03T15:32:25Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"published": "2026-09-03T15:32:25Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85181",
"type": "ADVISORY"
},
{
"url": "https://github.com/dianping/cat/issues/2384",
"type": "WEB"
},
{
"url": "https://github.com/dianping/cat",
"type": "WEB"
},
{
"url": "https://github.com/dianping/cat/blob/3.1.0/cat-home/src/main/java/com/dianping/cat/system/page/login/service/TokenBuilder.java",
"type": "WEB"
},
{
"url": "https://github.com/dianping/cat/blob/3.1.0/cat-home/src/main/java/com/dianping/cat/util/HttpUtils.java",
"type": "WEB"
},
{
"url": "https://www.vulncheck.com/advisories/cat-through-3.1.0-session-cookie-forgery-via-unkeyed-hashcode-checksum",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-565"
],
"severity": "CRITICAL",
"github_reviewed": false,
"nvd_published_at": "2026-09-03T15:17:39Z",
"github_reviewed_at": null
}
}