CVE-2025-14261: Lack of entropy allows registered low-privileged users of Litmus to crack valid JWT tokens and gain admin privileges

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-08 · updated 2026-10-07
Weakness: CWE-331

Description

The Litmus platform uses JWT for authentication and authorization, but the secret being used for signing the JWT is only 6 bytes long at its core, which makes it extremely easy to crack.

Affected products

LitmusChaos Litmus: before 3.23.0 — fixed in 3.23.0

How to fix

Upgrade to a fixed version: LitmusChaos Litmus 3.23.0. Check the vendor advisory for mitigations.

References

https://github.com/litmuschaos/litmus/pull/5324
https://research.jfrog.com/vulnerabilities/litmus-jwt-missing-entropy-elevation-jfsa-2025-001648159/

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