# CVE-2025-22227: Reactor Netty HTTP is vulnerable to credential leaks during chained redirects

Source: https://junglewise.ai/threats/cve-2025-22227-reactor-netty-http-is-vulnerable-to-credential-leaks-during  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-07-16  
License: CC BY 4.0 with a link back

CVE-2025-22227 · Severity: low · CVSS 3.1 · Published 2025-07-16

Reactor Netty HTTP is vulnerable to credential leaks during chained redirects

Technologies: [io.projectreactor.netty:reactor-netty-http (Maven)](https://junglewise.ai/threats/technologies/io-projectreactor-netty-reactor-netty-http). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2025-22227 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-22227 being exploited in the wild.

**How severe is CVE-2025-22227?** Low severity, with a CVSS score of 3.1, published 16 July 2025.

**Which products and versions are affected?** io.projectreactor.netty:reactor-netty-http (Maven) ECOSYSTEM:introduced=1.3.0-M1,fixed=1.3.0-M5.

**Is there a fix for CVE-2025-22227?** Yes. io.projectreactor.netty:reactor-netty-http (Maven): upgrade to 1.3.0-M5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-22227?** Check whether you run io.projectreactor.netty:reactor-netty-http (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- io.projectreactor.netty:reactor-netty-http (Maven): upgrade to 1.3.0-M5 or later

  ```sh
  # set io.projectreactor.netty:reactor-netty-http to 1.3.0-M5 in your pom.xml or build.gradle
  ```


## Affected products

- io.projectreactor.netty:reactor-netty-http (Maven) ECOSYSTEM:introduced=1.3.0-M1,fixed=1.3.0-M5

## Identifiers

- CVE-2025-22227
- GHSA-4q2v-9p7v-3v22

## Related threats

- [In Reactor Netty HTTP Server a malicious user can send a request using a specially crafted URL that can lead to a…](https://junglewise.ai/threats/cve-2023-34062-in-reactor-netty-http-server-a-malicious-user-can-send-a-request)
- [Invalid HTTP requests in Reactor Netty HTTP Server may reveal access tokens](https://junglewise.ai/threats/cve-2022-31684-invalid-http-requests-in-reactor-netty-http-server-may-reveal)
- [Improper Handling of Exceptional Conditions and Improper Input Validation in Reactor Netty](https://junglewise.ai/threats/cve-2020-5403-improper-handling-of-exceptional-conditions-and-improper-input)
- [Insufficiently Protected Credentials in Reactor Netty](https://junglewise.ai/threats/cve-2020-5404-insufficiently-protected-credentials-in-reactor-netty)