EUVD-2026-70485
GHSA-xrx5-jvp4-rqmj
Severity by source
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
Remote, unauthenticated, no interaction cookie forgery yielding full admin config access; C:H/I:H clear, A:H via admin control over the monitoring service, no scope change.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 2
AnalysisAI
Session cookie forgery in Dianping CAT (Central Application Tracking) through version 3.1.0 lets remote unauthenticated attackers mint valid administrator sessions. The server uses Java's String.hashCode() as the only integrity check on session cookies without any server-side secret key, so an attacker can compute a matching checksum entirely offline; combining this with a spoofed x-forwarded-for header to defeat IP-binding validation yields a full-access admin session over CAT's configuration. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires network reachability to CAT's web/login endpoint (any deployment ≤3.1.0). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue rather than an inflated CVSS number. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released fixed version is identified in the provided data; the issue is tracked upstream at https://github.com/dianping/cat/issues/2384 with the vulnerable logic in TokenBuilder.java and HttpUtils.java. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify and inventory all Dianping CAT instances running version 3.1.0 or earlier, and assess whether they are exposed to untrusted networks. …
Sign in for detailed remediation steps and compensating controls.
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External POC / Exploit Code
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