Simple Admin Core — CVE-2026-111690 (Critical)

Date Oct 16, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Simple · Admin Core

CVE CVE-2026-111690

Critical vendor advisory CVE-2026-111690

Summary

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.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.8) in Simple Admin Core. Patch or mitigate promptly.

Operator check

Review CVE-2026-111690 in your asset inventory. Apply patches per vendor guidance and verify Admin Core is not exposed. CVSS score: 9.8.

Sources

NVD — CVE-2026-111690 Source reference Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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