CVE-2026-111690CWE-321

CVE-2026-111690

Critical · published October 16, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
37.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00443 · 37.5th percentile
Weakness
CWE-321 · Use of Hard-coded Cryptographic Key
Published
2026-10-16T22:17Z
References (5)
https://github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.yaml#L6-L8 · [email protected]https://github.com/suyuan32/simple-admin-core/pull/382 · [email protected]https://hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-auth-bypass · [email protected]https://www.vulncheck.com/advisories/simple-admin-core-through-1.8.7-hard-coded-jwt-secret-authentication-bypass · [email protected]https://hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-auth-bypass · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:39Z
    Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass
    cvelistv5
  • 16 OCT 17:39Z
    Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass
    cvelistv5