Description
vlife through 2.0.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge JWTs using the hardcoded HS256 signing key in TokenUtil. Attackers can sign a token with superUser=true and arbitrary groupIds claims to gain super administrator access to any URL on vlife instances.
References6
- github.com/wwwlike/vlife
- github.com/wwwlike/vlife/blob/4f03b19b91d82781939653f5b0d9a7072…
- github.com/wwwlike/vlife/blob/4f03b19b91d82781939653f5b0d9a7072…
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/vlife-hardcoded-jwt-secret-to…
- www.vulncheck.com/advisories/vlife-through-2.0.1-authentication…
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/vlife-hardcoded-jwt-secret-to…
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
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 - EPSS — exploit probability
- 1% percentile: 63 · as of 11 November 2026
- CWE
- CWE-321
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.