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Learn moreCVE-2025-22227: Authentication Leak On Redirect With Reactor Netty HTTP Client
Description
In some specific scenarios with chained redirects, Reactor Netty HTTP client leaks credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects.
Affected Spring Products and Versions
Reactor Netty:
- 1.0.0 - 1.0.48
- 1.1.0 - 1.1.31
- 1.2.0 - 1.2.7
- 1.3.0-M1 - 1.3.0-M4
- Older, unsupported versions are also affected. Users of these versions are encouraged to upgrade to a supported version.
Mitigation
Users of affected versions should upgrade to the corresponding fixed version.
| Affected version(s) | Fix version | Availability |
|---|---|---|
| 1.0.x | 1.0.49 (Reactor BOM 2020.0.48) | Commercial |
| 1.1.x | 1.1.32 (Reactor BOM 2022.0.27 and 2023.0.20) | Commercial |
| 1.2.x | 1.2.8 (Reactor BOM 2024.0.8) | OSS |
| 1.3.x | 1.3.0-M5 (Reactor BOM 2025.0.0-M5) | OSS |
No further mitigation steps are necessary.
Credit
The issue was reported responsibly by Martin van Wingerden.
References
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Reporting a vulnerability
To report a security vulnerability for a project within the Spring portfolio, see the Security Policy
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