{"cvss":6.5,"datePublished":"2026-09-18T21:18:48.277","dateUpdated":"2026-10-15T17:17:31.810","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. 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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."}],"id":"CVE-2026-93574","lastModified":"2026-10-15T17:17:31.810","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"exploitabilityScore":3.9,"impactScore":2.5,"source":"secalert@redhat.com","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-93574","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-09-21T18:18:47.806786Z","version":"2.0.3"}}]},"published":"2026-09-18T21:18:48.277","references":[{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:69440"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:69470"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:83612"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/security/cve/CVE-2026-93574"},{"source":"secalert@redhat.com","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536966"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Awaiting Analysis","weaknesses":[{"description":[{"lang":"en","value":"CWE-444"}],"source":"secalert@redhat.com","type":"Secondary"}]},"severity":"MEDIUM","source":"nvd","title":"A flaw was found in Netty's `netty-codec-http` component"}