7.3

CVE-2026-75973

Medienbericht

Apache Tomcat: Cross-context authentication mix-up with Jakarta Authentication configured

Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a request would be used for all web applications.



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.M4 through 9.0.121.



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




Users are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fixes the issue.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerApache Software Foundation
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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.M4
Status affected
Version <= 8.5.100
Version 8.5.0
Status affected
Version <= 7.0.109
Version 0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.132
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.3 3.9 3.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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VulnDex Intel
Media Report
05.10.2026 17:13
https://lists.apache.org/thread/njjcdkkzqyzx4n3ffc4ffjmyh5mpl1gr
http://www.openwall.com/lists/oss-security/2026/09/23/20