{"id":"CLSA-2026-1791914243","summary":"httpd: Fix of 6 CVEs","details":"- CVE-2026-42356: do not run the target of a CGI internal redirect with the\n  handler derived from the CGI request's trusted content type\n- CVE-2026-63686: fix mod_xml2enc NULL pointer dereference when a charset\n  conversion partially succeeds and then fails\n- CVE-2026-63718: fix mod_proxy_uwsgi response smuggling via backend\n  Transfer-Encoding by dropping hop-by-hop response headers\n- CVE-2026-73636: fix mod_auth_digest one-time nonce replay\n- CVE-2026-73637: fix mod_auth_digest use-after-free of shared client entries\n  on concurrent requests\n- CVE-2026-48005: fix mod_auth_digest forced re-authentication via forged\n  Authorization headers with AuthDigestNcCheck\n- mod_auth_digest: configs using \"AuthDigestQop none\" or the \"authdigest-opaque\"\n  Mutex type no longer start (the shipped manual still documents\n  \"AuthDigestQop none\"); RFC 2069 clients (no qop) are refused; with\n  AuthDigestNcCheck On or AuthDigestNonceLifetime 0, 503 if no client entry\n  fits in shared memory; log ids AH01767, AH01771, AH01772, AH01792 and\n  AH01793 are removed\n- mod_auth_digest: with AuthDigestNcCheck On, a request that is authenticated\n  twice (e.g. a DirectoryIndex file in its own \u003cFiles\u003e section) is refused\n  with 401\n- mod_auth_digest: after a reload (also the logrotate one) or a SIGHUP restart\n  a captured request can be accepted once more under AuthDigestNonceLifetime 0\n  or AuthDigestNcCheck; only stopping httpd (systemctl restart) invalidates\n  it (fixed upstream only in trunk f4c4160fbf, not in 2.4.69)","modified":"2026-10-26T09:43:51.707224401Z","published":"2026-10-13T17:57:36Z","upstream":["CVE-2026-42356","CVE-2026-48005","CVE-2026-63686","CVE-2026-63718","CVE-2026-73636","CVE-2026-73637"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1791914243.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42356"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48005"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63686"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63718"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73636"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73637"}],"affected":[{"package":{"name":"httpd","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/httpd?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"httpd-devel","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/httpd-devel?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"httpd-filesystem","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/httpd-filesystem?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"httpd-manual","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/httpd-manual?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"httpd-tools","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/httpd-tools?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"mod_ldap","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/mod_ldap?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"mod_proxy_html","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/mod_proxy_html?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"mod_session","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/mod_session?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}},{"package":{"name":"mod_ssl","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/mod_ssl?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.37-64.module_el8+2681+cda4105c.tuxcare.els12"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791914243.json"}}],"schema_version":"1.9.0"}