{"id":"RHSA-2026:35454","summary":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","modified":"2026-07-23T10:32:27.583889110Z","published":"2026-07-23T10:11:15Z","upstream":["CVE-2026-58055"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:35454"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-58055"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/"},{"type":"ARTICLE","url":"https://images.redhat.com/"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_35454.json"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2493954"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-58055"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58055"},{"type":"ARTICLE","url":"https://github.com/bikini/exploitarium/tree/main/nghttp2-nghttpx-upgrade-queue-poison-poc"},{"type":"ARTICLE","url":"https://github.com/nghttp2/nghttp2/commit/ab28105c4a0197da24f8bfc414bc116055249e1e"},{"type":"ARTICLE","url":"https://www.vulncheck.com/advisories/nghttp2-nghttpx-http-request-response-smuggling-via-upgrade-request-with-content-length"}],"affected":[{"package":{"name":"libnghttp2","ecosystem":"Red Hat:hummingbird:1","purl":"pkg:rpm/redhat/libnghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.69.0-3.1.hum1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:35454.json"}},{"package":{"name":"nghttp2","ecosystem":"Red Hat:hummingbird:1","purl":"pkg:rpm/redhat/nghttp2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.69.0-3.1.hum1"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:35454.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}