Vulnerability in Suyuan32 Simple-Admin-Core
CVE-2026-111690
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-aut… (third-party-advisory)
- github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.yaml (technical-description)
- github.com/suyuan32/simple-admin-core/pull/382 (issue-tracking, patch)
- www.vulncheck.com/advisories/simple-admin-core-through-1.8.7-hard-coded-jwt-sec… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111690?
- CVE-2026-111690 is a critical-severity vulnerability in Suyuan32 Simple-Admin-Core, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2026-10-16.
- How severe is CVE-2026-111690?
- Critical severity. CVSS v3 base score is 9.8 out of 10.