What’s Vulnerable › Vulnerabilities
CVE-2020-5403: DoS Via Malformed URL with Reactor Netty HTTP Server
- 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: 2020-03-03 · updated 2026-09-04
- Weakness: CWE-20
Description
Reactor Netty HttpServer, versions 0.9.3 and 0.9.4, is exposed to a URISyntaxException that causes the connection to be closed prematurely instead of producing a 400 response.
Affected products
- Spring Reactor Netty: 0.9.3, 0.9.4
References
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