High severity7.5NVD Advisory· Published Mar 3, 2020· Updated Sep 4, 2026

CVE-2020-5403

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
io.projectreactor.netty:reactor-netty-httpMaven	>= 0.9.3, < 0.9.5	0.9.5

Affected products

Cloudfoundry/Reactor Netty3 versions
cpe:2.3:a:pivotal:reactor_netty:0.9.3:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:pivotal:reactor_netty:0.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:pivotal:reactor_netty:0.9.4:*:*:*:*:*:*:*
- (no CPE)range: 0.9 v0.9.3.RELEASE
ghsa-coords
pkg:maven/io.projectreactor.netty/reactor-netty-http
Range: >= 0.9.3, < 0.9.5

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-hp5x-rqf7-43vfghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2020-5403ghsaADVISORY
pivotal.io/security/cve-2020-5403nvdVendor AdvisoryWEB

News mentions

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exploit	0.000
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ransomware	0.000