{"id":"CVE-2026-93491","published":"2026-09-18T13:18:38.723","lastModified":"2026-09-22T19:16:57.913","description":"A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-770"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:69440","tags":[]},{"url":"https://access.redhat.com/errata/RHSA-2026:69470","tags":[]},{"url":"https://access.redhat.com/errata/RHSA-2026:70257","tags":[]},{"url":"https://access.redhat.com/security/cve/CVE-2026-93491","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536891","tags":[]},{"url":"https://github.com/netty/netty/releases/tag/netty-4.1.138.Final","tags":[]},{"url":"https://github.com/netty/netty/releases/tag/netty-4.2.18.Final","tags":[]}],"exploitRefs":[{"url":"https://github.com/netty/netty/releases/tag/netty-4.1.138.Final","tags":[]},{"url":"https://github.com/netty/netty/releases/tag/netty-4.2.18.Final","tags":[]}],"hasPoc":true,"ai":null}