CVE-2026-111690
Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
Simple Admin Core through 1.8.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge super administrator tokens by using the hard-coded Auth.AccessSecret in api/etc/core.yaml. Attackers can sign a JWT with the public secret and roleId claim 001 to gain full administrative control over users, roles, menus, API authorities, configuration and tokens.
| CWE | CWE-321 |
| Vendor | suyuan32 |
| Product | simple-admin-core |
| Published | Oct 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
suyuan32 / simple-admin-core
0 ≤ 1.8.7
References
hackmd.io: https://hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-auth-bypass github.com: https://github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.yaml#L6-L8 github.com: https://github.com/suyuan32/simple-admin-core/pull/382 vulncheck.com: https://www.vulncheck.com/advisories/simple-admin-core-through-1.8.7-hard-coded-jwt-secret-authentication-bypass
Credits
hieuPenguinnn