{"id":"CLSA-2026-1786121727","summary":"tomcat: Fix of 8 CVEs","details":"- CVE-2026-24880: validate HTTP/1.1 chunk extensions with a new ChunkExtension state\n  machine instead of skipping them unparsed, so a CRLF embedded in a quoted extension\n  value can no longer desync Tomcat from a front-end proxy and smuggle a request\n- CVE-2026-25854: collapse leading slashes on the request URI and redirect via\n  sendRedirect in the LoadBalancerDrainingValve so a protocol-relative URI can no\n  longer be reflected into the Location header as an open redirect\n- CVE-2026-34483: escape the request URI and query string in the access log %r, %q\n  and %U elements so log fields cannot be forged through unescaped output\n- CVE-2026-34487: stop logging the Kubernetes bearer token by dropping it from the\n  tokenStream.failedConnection message and dropping the request headers from the\n  cloud stream provider debug log","modified":"2026-10-26T09:30:31.733408947Z","published":"2026-08-07T16:55:45Z","upstream":["CVE-2026-24880","CVE-2026-25854","CVE-2026-34483","CVE-2026-34487"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1786121727.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-61795"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24880"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25854"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34483"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34487"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50229"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53404"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55955"}],"affected":[{"package":{"name":"tomcat","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-admin-webapps","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-admin-webapps?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-docs-webapp","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-docs-webapp?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-el-3.0-api","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-el-3.0-api?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-jsp-2.3-api","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-jsp-2.3-api?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-lib","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-lib?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-servlet-4.0-api","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-servlet-4.0-api?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}},{"package":{"name":"tomcat-webapps","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/tomcat-webapps?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.0.62-12.el9_2.1.tuxcare.els8"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786121727.json"}}],"schema_version":"1.9.0"}