{"id":"ALSA-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\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.\n","modified":"2026-08-14T13:45:03.475426402Z","published":"2026-08-13T00:00:00Z","related":["CVE-2026-58055"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:54662"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-58055"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2493954"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-54662.html"}],"affected":[{"package":{"name":"libnghttp2","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libnghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-6.el9_8.2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:54662.json"}},{"package":{"name":"libnghttp2-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/libnghttp2-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-6.el9_8.2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:54662.json"}},{"package":{"name":"nghttp2","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/nghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.43.0-6.el9_8.2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:54662.json"}}],"schema_version":"1.9.0"}