{"id":"ALSA-2026:34355","summary":"Moderate: mod_http2 security, bug fix, and enhancement update","details":"The mod_h2 Apache httpd module implements the HTTP2 protocol (h2+h2c) on top of libnghttp2 for httpd 2.4 servers.  \n\nSecurity Fix(es):  \n\n  * httpd: mod_http2: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service. (CVE-2026-48913)\n  * httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime (CVE-2026-43951)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * address CVE-2026-43951 and CVE-2026-48913 in mod_http2 (JIRA:AlmaLinux-188008)\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":"2026-07-02T09:59:25.212082440Z","published":"2026-07-01T00:00:00Z","related":["CVE-2026-43951","CVE-2026-48913"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:34355"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-43951"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-48913"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486405"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486415"},{"type":"ADVISORY","url":"https://errata.almalinux.org/10/ALSA-2026-34355.html"}],"affected":[{"package":{"name":"mod_http2","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/mod_http2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.29-4.el10_2.2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:34355.json"}}],"schema_version":"1.7.5"}