Vulnerability details

CVE-2026-117564

buqiyuan nest-admin

nest-admin before 1.0.1 Authentication Bypass via Hardcoded JWT Secret

CVSS 4.0

9.3Critical

Official description

nest-admin before 1.0.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge administrator tokens by using a hardcoded JWT_SECRET committed in .env.production. Attackers can sign tokens with the known secret that JwtStrategy and RbacGuard trust, impersonating any user ID or claiming the admin role for full administrative access.

CVSS scores

Score	Version	Source	Vector
9.3Critical	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`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`
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
buqiyuan	nest-admin	v < 1.0.1	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/buqiyuan/nest-admin/issues/93 issue-tracking
https://github.com/buqiyuan/nest-admin product
https://github.com/buqiyuan/nest-admin/commit/f2cec8cb776cbf113115b33164dac69a46d24097 patch
https://github.com/buqiyuan/nest-admin/issues/92 issue-tracking
https://github.com/buqiyuan/nest-admin/blob/2eeccc4cb699d1aedbe04b4437a9d095cde02c74/.env.production#L5 technical-description
https://www.vulncheck.com/advisories/nest-admin-before-1.0.1-authentication-bypass-via-hardcoded-jwt-secret third-party-advisory

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Details

Published: 2026-10-27
Last updated: 2026-10-28
State: Published
Assigner (CNA): VulnCheck
Kolun priority: 26 · Low

Exploit prediction (EPSS)

0.59%

Probability of exploitation in 30 days

48.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-321
Use of Hard-coded Cryptographic Key