{"schema_version":"1.7.2","id":"OESA-2026-2084","modified":"2026-04-25T05:50:02Z","published":"2026-04-25T05:50:02Z","upstream":["CVE-2026-33555"],"summary":"haproxy security update","details":"HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.(CVE-2026-33555)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"haproxy","purl":"pkg:rpm/openEuler/haproxy&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.6-19.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["haproxy-2.6.6-19.oe2203sp4.aarch64.rpm","haproxy-debuginfo-2.6.6-19.oe2203sp4.aarch64.rpm","haproxy-debugsource-2.6.6-19.oe2203sp4.aarch64.rpm"],"noarch":["haproxy-help-2.6.6-19.oe2203sp4.noarch.rpm"],"src":["haproxy-2.6.6-19.oe2203sp4.src.rpm"],"x86_64":["haproxy-2.6.6-19.oe2203sp4.x86_64.rpm","haproxy-debuginfo-2.6.6-19.oe2203sp4.x86_64.rpm","haproxy-debugsource-2.6.6-19.oe2203sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2084"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33555"}],"database_specific":{"severity":"Medium"}}