CVE-2026-93566
Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the chunk-size line
CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-93566
PublishedA flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can lead to HTTP request smuggling, potentially resulting in information disclosure or other unauthorized actions.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-93566 · CVE overview and exploitation status
cve-program · CVE-2026-93566
- https://access.redhat.com/errata/RHSA-2026:69440
- https://access.redhat.com/errata/RHSA-2026:69470
- https://access.redhat.com/errata/RHSA-2026:83612
- https://access.redhat.com/errata/RHSA-2026:95759
- https://access.redhat.com/errata/RHSA-2026:95760
- https://access.redhat.com/errata/RHSA-2026:95761
- https://access.redhat.com/errata/RHSA-2026:95762
- https://access.redhat.com/errata/RHSA-2026:95887
- https://access.redhat.com/security/cve/CVE-2026-93566
- https://bugzilla.redhat.com/show_bug.cgi?id=2536954
Related changes
Linked by CVE identifier- Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the chunk-size line · Affected-version evidence changed · 6 Nov 2026
- Io.netty/netty-codec-http: netty: http request smuggling due to control characters in the chunk-size line · Affected-version evidence changed · 6 Nov 2026