{"schemaVersion":3,"id":"CVE-2026-111690","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2026-10-16T17:39:46.960Z","modified":"2026-10-16T17:39:46.960Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.3,"severity":"critical","vector":"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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.3,"severity":"critical","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-321","name":"Use of Hard-coded Cryptographic Key","description":"The product uses a hard-coded, unchangeable cryptographic key.","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/321.html"}],"affected":[{"vendor":"suyuan32","product":"simple-admin-core","name":"simple-admin-core","label":"simple-admin-core","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.8.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.8.7","eol":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-auth-bypass","label":"hackmd.io/@hieuPenguinnn/simple-admin-core-hardcoded-jwt-accesssecret-admin-auth-bypass","hostname":"hackmd.io","tags":["Third Party Advisory"]},{"url":"https://github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.yaml#L6-L8","label":"github.com/suyuan32/simple-admin-core/blob/v1.8.7/api/etc/core.yaml","hostname":"github.com","tags":["Technical Description"]},{"url":"https://github.com/suyuan32/simple-admin-core/pull/382","label":"github.com/suyuan32/simple-admin-core/pull/382","hostname":"github.com","tags":["Issue Tracking","Patch"]},{"url":"https://www.vulncheck.com/advisories/simple-admin-core-through-1.8.7-hard-coded-jwt-secret-authentication-bypass","label":"www.vulncheck.com/advisories/…","hostname":"www.vulncheck.com","tags":["Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-16T17:39:46.960Z","label":"Published","detail":"Vulnerability first disclosed.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-16T22:22:54.650Z","stale":false,"partial":false}}