What’s Vulnerable › Vulnerabilities
CVE-2023-34062
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-11-15 · updated 2026-09-04
- Weakness: CWE-22
Description
In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, a malicious user can send a request using a specially crafted URL that can lead to a directory traversal attack. Specifically, an application is vulnerable if Reactor Netty HTTP Server is configured to serve static resources.
Affected products
- Spring Reactor Netty: from 1.0.0 before 1.0.39; from 1.1.0 before 1.1.13 — fixed in 1.0.39, 1.1.13
How to fix
Upgrade to a fixed version: Spring Reactor Netty 1.0.39, 1.1.13. Check the vendor advisory for mitigations.
References
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