Medium severity6.5NVD Advisory· Published Sep 18, 2026· Updated Oct 15, 2026
CVE-2026-93574
CVE-2026-93574
Description
A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an attacker to bypass security controls or access unauthorized resources in proxy/backend deployments.
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Affected products
2Patches
Vulnerability mechanics
References
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