{"id":"ALSA-2026:42828","summary":"Important: httpd:2.4 security, bug fix, and enhancement update","details":"The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.  \n\nSecurity Fix(es):  \n\n  * httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)\n  * httpd: NULL pointer dereference via specially crafted request (CVE-2026-29169)\n  * httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)\n  * httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server (CVE-2026-44185)\n  * httpd: Apache HTTP Server: Denial of Service via crafted regular expressions (CVE-2026-44631)\n  * httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server (CVE-2026-44186)\n  * httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc (CVE-2026-42536)\n  * httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass (CVE-2026-34355)\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  * mod_proxy_html regression in CVE-2026-34355 fix [almalinux-8.10.z] (JIRA:AlmaLinux-192751)\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":"2026-07-22T17:14:41.654052587Z","published":"2026-07-21T00:00:00Z","related":["CVE-2023-38709","CVE-2024-42516","CVE-2026-29169","CVE-2026-34355","CVE-2026-34356","CVE-2026-42536","CVE-2026-43951","CVE-2026-44185","CVE-2026-44186","CVE-2026-44631"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:42828"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2024-42516"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-29169"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-34355"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-34356"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-42536"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-43951"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-44185"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-44186"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-44631"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2374549"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2465296"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486395"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486397"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486399"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486402"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486411"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486414"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2486415"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-42828.html"}],"affected":[{"package":{"name":"httpd","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/httpd"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"httpd-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/httpd-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"httpd-manual","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/httpd-manual"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"httpd-tools","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/httpd-tools"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_http2","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_http2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.7-10.module_el8.10.0+4233+8b7d9181.7"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_ldap","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_ldap"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_md","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_md"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.0.8-8.module_el8.10.0+4088+57f011c1.2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_proxy_html","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_proxy_html"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_session","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_session"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-65.module_el8.10.0+4233+8b7d9181.9"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:42828.json"}},{"package":{"name":"mod_ssl","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/mod_ssl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.37-65.m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