{"id":"SUSE-SU-2026:23710-1","summary":"Security update for tomcat11","details":"This update for tomcat11 fixes the following issues:\n\n- CVE-2026-65182: Bypass longest prefix security constraint (bsc#1276893).\n- CVE-2026-65183: TOCTOU when setting specific permissions for Unix Domain Sockets (bsc#1276894).\n- CVE-2026-65637: HTTP/2 no-authority bypass of strict SNI validation - fix incomplete (bsc#1276895).\n- CVE-2026-65905: Limited replay attack possible with DIGEST authentication (bsc#1276896).\n- CVE-2026-65927: RewriteValve [N] restarts at the second rule and may bypass access control (bsc#1276897).\n- CVE-2026-66299: memory exhaustion via maliciously slow clients due to the WebSocket chat example providing an\n  unbounded buffer for undelivered messages (bsc#1273150).\n- CVE-2026-66422: Servlet role references can bypass declarative role constraints (bsc#1276898).\n- CVE-2026-68525: Redirect after FORM auth may bypass method specific constraints (bsc#1276899).\n- CVE-2026-68569: Principal lookup can fail open in some cases (bsc#1276900).\n- CVE-2026-68763: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset (bsc#1276901).\n- CVE-2026-73180: Authenticated WebSocket session survives end of HTTP session (bsc#1276902).\n\nChanges for tomcat11:\n\n- Update to Tomcat 11.0.25\n * Catalina\n + Fix: Ensure that a login-config conflict when merging web.xml fragments\n triggers a deployment failure. (markt)\n + Code: Remove unnecessary calls to String.intern() in the parsing of\n configuration files. (markt)\n + Fix: Extend sessionAttributeValueClassNameFilter to include filtering of\n dynamic proxy interface classes. (markt)\n + Fix: Attempt to use rollback when persisting user data to the\n DataSourceUserDatabase fails and improve error reporting. (remm)\n + Fix: 70143: Handle InvalidFileNameException when parsing parts to\n rethrow it as an IllegalStateException as mandated by the Servlet\n specification. (remm)\n + Fix: Add missing reason to the JsonErrorReportValve. (remm)\n + Fix: evaluation of the N and C flags for rewrite rules. (remm)\n + Fix: qsd flag should always discard the original query string when\n rewriting. (remm)\n + Fix: Add appropriate escaping for context path, current directory name\n and parent directory name for directory listings produced by the default\n servlet. Ensure XML escaping is used with XML output. (markt)\n + Fix: When processing certificate subject names and issuer names within\n RewriteValve rules, always use the RFC 2253 format name. (markt)\n + Fix: the incorrect rejection of requests using digest authentication\n when the client provided nonce count is at the upper boundary of the\n window (markt).\n + Update: Separate the Context role mapping from the Servlet specification\n security-role-ref. (remm)\n + Fix: Handle the case where the JNDIRealm is configured to perform role\n searches with userRoleAttribute but the attribute is not available or\n not configured for the current user. (markt)\n + Fix: Improve handling of session attribute addition concurrent with\n session expiration. An application will now either see a successful\n addition followed by expiration or the addition will not succeed. It is\n no longer possible for the session to expire and the addition to\n succeed. This is of particular not for attributes that implement\n HttpSessionBindingListener. (markt)\n + Fix: Add a new attribute to the Context,\n urlPatternsProvidedInDecodedForm. This attribute controls whether URLs\n and URL patterns provided in the deployment descriptor (web.xml),\n annotations and/or their programmatic equivalents are treated as being\n provided in URL-encoded form (i.e. using %nn encoding) or in decoded\n form. The Servlet specification requires that they are provided in\n decoded form. However, Tomcat has historically treated them as if they\n are provided in encoded form. In Tomcat 12, they will always be treated\n as if they are provided in decoded form. This setting enables migration\n from encoded form to decoded form on an application by application\n basis. This attribute will be removed in Tomcat 12 where it will\n effectively be hard-coded to true. (markt)\n + Fix: Ensure the security constraint with the longest matching path is\n selected when more than one constraint matches the request path. (markt)\n + Fix: If the request saved by FORM authentication uses a method other\n than GET, ensure that the security constraints are re-assessed after the\n saved request is restored and before it is processed. Custom\n Authenticator implementations that extend FormAuthenticator and override\n doAuthenticate() and/or restoreRequest() will require modification.\n (markt)\n + Fix: Various improvements to the DataSourceRealm. A failure to connect\n to the database or an exception during either user or role lookup will\n now result in an authentication failure rather than a partially\n populated Principal. For CLIENT-CERT and SPNEGO authentication, the user\n must exist in the database for authentication to succeed. (markt)\n * Coyote\n + Update: Add utility AutoCloseable URLConnection wrapper, and use it to\n cleanup existing code patterns. (remm/markt)\n + Fix: When processing an HTTP upgrade from HTTP/1.1 to HTTP/2, ensure\n that all the HTTP/1.1 data has been processed before switching\n protocols. (markt)\n + Fix: Require every HTTP/2 request to provide an authority (either an\n :authority pseudo header or a Host header). (markt)\n + Fix: Register the use of an HTTP/2 stream identifier earlier so that\n there is no possibility of a re-used stream identifier being accepted,\n regardless of how early in the HEADERS frame processing an error is\n detected. (markt)\n + Add: new attributes (unixDomainSocketParentPermissions and\n unixDomainSocketParentOwner) to the NIO connector to provide additional\n control over the security of Unix Domain Sockets. Additional checks\n (enabled by default) have also been added for the directory where the\n Unix Domain Socket will be created.(markt)\n + Fix: an allocation leak in the HTTP/2 backlog tracking when a stream is\n reset. (markt)\n * Jasper\n + Fix: Ensure internal state is reset before re-using ELParser. (markt)\n * WebSocket\n + Add: a limit (defaults to 8KB) on the size of the HTTP response headers\n accepted during a WebSocket HTTP upgrade. This is configured via the\n org.apache.tomcat.websocket.MAX_HTTP_RESPONSE_HEADER_BYTES user\n property. (markt)\n + Fix: Improve URI template matching for WebSocket end points. Trailing\n slashes are now significant both for template definitions and URIs\n considered for potential matches to those URIs. Note that this means if\n a URI template ends in a variable without a trailing slash, that\n variable might be expanded to the empty string. (markt)\n + Fix: Account for session ID changes when tracking WebSocket connections\n for closure because they were created under an authenticated HTTP\n session that has since ended. (markt)\n * Web applications\n + Fix: 70160: Correct various references to the Servlet specification to\n use version 6.1. (markt)\n + Fix: Documentation: Better sample httpd configuration for use with\n SSLValve and add a note that the exact configuration required will\n depend on the overall httpd configuration. (markt)\n + Fix: Examples: Limit the buffering of messages in the WebSocket chat\n example to prevent a malicious client triggering excessive memory usage\n that could lead to a DoS. (markt)\n + Fix: Documentation: Expand the description of the %S (session ID) access\n log pattern token. (markt)\n + Fix: Manager: Use reflection to load clustering classes in\n sessionsList.jsp so the sessions list page renders correctly when\n clustering JARs are not present. (csutherl)\n * Other\n + Update: Maven Resolver Ant Tasks to 1.6.1. (rjung)\n + Update: Objenesis to 3.6. (markt)\n + Update: JSign to 7.5. (markt)\n + Update: Bouncy Castle to 1.85. (markt)\n + Add: Improvements to French translations. (remm)\n + Add: Improvements to Japanese translations provided by tak7iji. (markt)\n * Cluster\n + Add: Change the default encryptionAlgorithm for the EncryptInterceptor\n to AES/GCM/NoPadding. This is a breaking change for the\n EncryptInterceptor. (markt)\n + Add: Expand the documentation for the EncryptInterceptor to be more\n explicit regarding the security weaknesses of some supported algorithms.\n Also explicitly state that the replay protection is only effective for\n non-malleable algorithms. (markt)\n + Add: Expand the Javadoc for the DNSMembershipProvider in particular\n explaining its behaviour and providing configuration advice if control\n more over cluster membership is required. (markt)\n * jdbc-pool\n + Fix: 70164: Correct the documentation for the testOnBorrow attribute.\n Pull request #1033 provided by Kohei Tamura. (markt)\n","modified":"2026-09-29T18:24:12.451974147Z","published":"2026-09-08T15:49:50Z","related":["CVE-2026-32990","CVE-2026-65182","CVE-2026-65183","CVE-2026-65637","CVE-2026-65905","CVE-2026-65927","CVE-2026-66299","CVE-2026-66422","CVE-2026-68525","CVE-2026-68569","CVE-2026-68763","CVE-2026-73180"],"upstream":["CVE-2026-32990","CVE-2026-65182","CVE-2026-65183","CVE-2026-65637","CVE-2026-65905","CVE-2026-65927","CVE-2026-66299","CVE-2026-66422","CVE-2026-68525","CVE-2026-68569","CVE-2026-68763","CVE-2026-73180"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623710-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1273150"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276893"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276894"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276895"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276896"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276897"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276898"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276899"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276900"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276901"},{"type":"REPORT","url":"https://bugzilla.suse.com/1276902"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-32990"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-65182"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-65183"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-65637"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-65905"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-65927"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66299"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66422"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-68525"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-68569"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-68763"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-73180"}],"affected":[{"package":{"name":"tomcat11","ecosystem":"SUSE:Linux Enterprise Server 16.0","purl":"pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%2016.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.25-160000.1.1"}]}],"ecosystem_specific":{"binaries":[{"tomcat11-jsp-4_0-api":"11.0.25-160000.1.1","tomcat11-servlet-6_1-api":"11.0.25-160000.1.1","tomcat11-embed":"11.0.25-160000.1.1","tomcat11":"11.0.25-160000.1.1","tomcat11-admin-webapps":"11.0.25-160000.1.1","tomcat11-lib":"11.0.25-160000.1.1","tomcat11-doc":"11.0.25-160000.1.1","tomcat11-webapps":"11.0.25-160000.1.1","tomcat11-el-6_0-api":"11.0.25-160000.1.1","tomcat11-jsvc":"11.0.25-160000.1.1","tomcat11-docs-webapp":"11.0.25-160000.1.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23710-1.json"}},{"package":{"name":"tomcat11","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","purl":"pkg:rpm/suse/tomcat11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.25-160000.1.1"}]}],"ecosystem_specific":{"binaries":[{"tomcat11":"11.0.25-160000.1.1","tomcat11-admin-webapps":"11.0.25-160000.1.1","tomcat11-lib":"11.0.25-160000.1.1","tomcat11-doc":"11.0.25-160000.1.1","tomcat11-servlet-6_1-api":"11.0.25-160000.1.1","tomcat11-webapps":"11.0.25-160000.1.1","tomcat11-jsp-4_0-api":"11.0.25-160000.1.1","tomcat11-docs-webapp":"11.0.25-160000.1.1","tomcat11-jsvc":"11.0.25-160000.1.1","tomcat11-embed":"11.0.25-160000.1.1","tomcat11-el-6_0-api":"11.0.25-160000.1.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23710-1.json"}}],"schema_version":"1.9.0"}