{"id":"OESA-2026-2977","summary":"nghttp2 security update","details":"The framing layer of HTTP/2 is implemented as a form of reusable C library. On top of that, we have implemented HTTP/2 client, server and proxy. We have also developed load test and benchmarking tool for HTTP/2.\r\n\r\nSecurity Fix(es):\n\nnghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting ambiguous message in the attacker's favor enables HTTP request/response smuggling and cross-client response-queue poisoning.(CVE-2026-58055)","modified":"2026-08-18T01:21:16.951907549Z","published":"2026-07-09T11:11:52Z","upstream":["CVE-2026-58055"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2977"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58055"}],"affected":[{"package":{"name":"nghttp2","ecosystem":"openEuler:20.03-LTS-SP4","purl":"pkg:rpm/openEuler/nghttp2&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-8.oe2003sp4"}]}],"ecosystem_specific":{"src":["nghttp2-1.41.0-8.oe2003sp4.src.rpm"],"x86_64":["libnghttp2-1.41.0-8.oe2003sp4.x86_64.rpm","libnghttp2-devel-1.41.0-8.oe2003sp4.x86_64.rpm","nghttp2-1.41.0-8.oe2003sp4.x86_64.rpm","nghttp2-debuginfo-1.41.0-8.oe2003sp4.x86_64.rpm","nghttp2-debugsource-1.41.0-8.oe2003sp4.x86_64.rpm"],"aarch64":["libnghttp2-1.41.0-8.oe2003sp4.aarch64.rpm","libnghttp2-devel-1.41.0-8.oe2003sp4.aarch64.rpm","nghttp2-1.41.0-8.oe2003sp4.aarch64.rpm","nghttp2-debuginfo-1.41.0-8.oe2003sp4.aarch64.rpm","nghttp2-debugsource-1.41.0-8.oe2003sp4.aarch64.rpm"],"noarch":["nghttp2-help-1.41.0-8.oe2003sp4.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-2977.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}