Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass
Published Oct 16, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- hackmd.io ↗
- Source repository ↗
- Source repository ↗
- VulnCheck Advisory: Simple Admin Core through 1.8.7 Hard-Coded JWT Secret Authentication Bypass ↗
Record history
Published Oct 16, 2026 · Last refreshed Nov 3, 2026