{"schema_version": "1.7.0", "id": "RLSA-2026:54662", "modified": "2026-08-14T12:09:10.994607Z", "published": "2026-08-14T12:04:07.449605Z", "upstream": ["CVE-2026-58055"], "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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "nghttp2", "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"}}]}], "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"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:54662"}}