9.8

CVE-2026-76183

Medienbericht

Apache Tomcat: Bypass of security constraints for WebSocket endpoints

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.



This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.



The following versions were EOS at the time the CVE was created but are 
known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.




Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerApache Software Foundation
≫
Produkt Apache Tomcat
Default Statusunaffected
Version <= 11.0.25
Version 11.0.0-M1
Status affected
Version <= 10.1.59
Version 10.1.0-M1
Status affected
Version <= 9.0.121
Version 9.0.0.M1
Status affected
Version <= 8.5.100
Version 8.5.0
Status affected
Version <= 7.0.109
Version 7.0.43
Status affected
Version 0
Version < 7.0.43
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.302
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-289 Authentication Bypass by Alternate Name

The product performs authentication based on the name of a resource being accessed, or the name of the actor performing the access, but it does not properly check all possible names for that resource or actor.

Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
05.10.2026 17:13
https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp
http://www.openwall.com/lists/oss-security/2026/09/23/21