{"id":"CLSA-2026-1784541319","summary":"Fix CVE(s): CVE-2026-55957","details":"   * SECURITY UPDATE: JNDIRealm credential validation bypass when\n     configured to use GSSAPI\n     - debian/patches/CVE-2026-55957.patch: in bindAsUser preserve the\n       current SASL environment, move userCredentialsAdd inside the try,\n       strip Context.SECURITY_AUTHENTICATION=\"GSSAPI\" before the LDAP bind\n       so the provided username/password are actually validated, and\n       restore the original SASL setting in a finally block along with\n       userCredentialsRemove. Also updates docs/config/realm.xml to\n       document that GSSAPI is skipped for calls made via\n       HttpServletRequest.login(String, String).\n     - CVE-2026-55957","modified":"2026-10-26T09:32:05.587352108Z","published":"2026-07-20T09:55:41Z","upstream":["CVE-2026-55957"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1784541319.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55957"}],"affected":[{"package":{"name":"libtomcat9-embed-java","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libtomcat9-embed-java?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"libtomcat9-java","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libtomcat9-java?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9-admin","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-admin?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9-common","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-common?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9-docs","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-docs?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9-examples","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-examples?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}},{"package":{"name":"tomcat9-user","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/tomcat9-user?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.31-1ubuntu0.9+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784541319.json"}}],"schema_version":"1.9.0"}