CVE-2025-51606

CVSS 8.8 HIGHEPSS 0.3%CWE-798

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Aug 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

n/a · n/a

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References

https://github.com/ShenxiuSec/cve-proofs/blob/main/POC-20250610-01.md