{"id":"CLSA-2026-1788365549","summary":"nginx: Fix of 2 CVEs","details":"- CVE-2026-56434: fix use-after-free from duplicate subrequest finalization;\n  ngx_http_post_request() now skips a request that is already posted, and\n  ngx_http_finalize_request() resets r-\u003ewrite_event_handler to a no-op\n  handler during active subrequest finalization\n- CVE-2026-60005: fix uninitialized memory read via stale regex captures in\n  slice/background-update subrequests; ngx_http_regex_exec() now resets\n  r-\u003encaptures when reallocating the captures array after a failed match","modified":"2026-10-26T09:31:19.202052719Z","published":"2026-09-02T16:12:42Z","upstream":["CVE-2026-56434","CVE-2026-60005"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1788365549.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56434"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-60005"}],"affected":[{"package":{"name":"nginx","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-all-modules","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-all-modules?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-core","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-core?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-filesystem","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-filesystem?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-devel","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-devel?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-http-image-filter","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-http-image-filter?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-http-perl","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-http-perl?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-http-xslt-filter","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-http-xslt-filter?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-mail","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-mail?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}},{"package":{"name":"nginx-mod-stream","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/nginx-mod-stream?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.20.1-22.el9_6.3.alma.2.tuxcare.els11"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788365549.json"}}],"schema_version":"1.9.0"}