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CVE-2025-51606

Date: August 20, 2025

hippo4j 1.0.0 to 1.5.0, uses a hard-coded secret key in its JWT (JSON Web Token) creation. This allows attackers with access to the source code or compiled binary to forge valid access tokens and impersonate any user, including privileged ones such as "admin". The vulnerability poses a critical security risk in systems where authentication and authorization rely on the integrity of JWTs.

Severity Score

Related Resources (5)

https://github.com/opengoofy/hippo4j/blob/7d78be3cab526501ad876495862f4cec108da2af/threadpool/server/auth/src/main/java/cn/hippo4j/auth/security/JwtTokenManager.java#L51
https://github.com/opengoofy/hippo4j
https://github.com/ShenxiuSec/cve-proofs/blob/main/POC-20250610-01.md
https://nvd.nist.gov/vuln/detail/CVE-2025-51606
https://www.mend.io/vulnerability-database/CVE-2025-51606

Severity Score

Weakness Type (CWE)

Use of Hard-coded Credentials

CWE-798

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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