Reactor Netty HTTP is vulnerable to credential leaks during chained redirects
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | io.projectreactor.netty:reactor-netty-http | >= 1.3.0-M1, < 1.3.0-M5, < 1.2.8 | 1.3.0-M5, 1.2.8 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-200- Platform
- Java / Kotlin (Maven)
- Package
io.projectreactor.netty:reactor-netty-http- Disclosed
- 16.07.2025
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4q2v-9p7v-3v22 - CC BY 4.0
Vulnerability history: io.projectreactor.netty:reactor-netty-http
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 02.2022 07.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 3
Disclosures per year
- 2022: 3
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 0
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Reactor Netty HTTP is vulnerable to credential leaks during chained redirects this entry
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