CVE-2026-75973 (GCVE-0-2026-75973)

Vulnerability from cvelistv5 – Published: 2026-09-23 11:14 – Updated: 2026-09-23 18:10
VLAI
Title
Apache Tomcat: Cross-context authentication mix-up with Jakarta Authentication configured
Summary
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.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 15:28 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.25 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.59 (semver)
Affected: 9.0.0.M4 , ≤ 9.0.121 (semver)
Affected: 8.5.0 , ≤ 8.5.100 (semver)
Unaffected: 0 , ≤ 7.0.109 (semver)
guessed Create a notification for this product.
Credits
0xCc.zhang
Show details on NVD website
To clipboard 

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