{"id":"RLSA-2026:54662","summary":"Moderate: nghttp2 security update","details":"libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.\n\nSecurity Fix(es):\n\n* nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests (CVE-2026-58055)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-08-14T12:30:04.772911203Z","published":"2026-08-14T12:04:07.449605Z","upstream":["CVE-2026-58055"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:54662"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:54662"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2493954"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:54662"}],"affected":[{"package":{"name":"nghttp2","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/nghttp2?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.43.0-6.el9_8.2"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:54662.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"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}