CVE-2026-43512
Critical
Description
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Apache Tomcat
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-592CWE-592
How to fix
Update
- apache tomcat9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat.embed:tomcat-embed-core9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat:tomcat9.0.118, 10.1.55, 11.0.22 or later
- org.apache.tomcat:tomcat-catalina9.0.118, 10.1.55, 11.0.22 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 7.0.0 ≤ v ≤ 7.0.109, 8.5.0 ≤ v ≤ 8.5.100, 9.0.0 ≤ v < 9.0.118, 10.1.0 ≤ v < 10.1.55, 11.0.0 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat.embed:tomcat-embed-coreMaven | v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat:tomcatMaven | v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
| org.apache.tomcat:tomcat-catalinaMaven | v < 9.0.118, 10.1.0-M1 ≤ v < 10.1.55, 11.0.0-M1 ≤ v < 11.0.22 | 9.0.118, 10.1.55, 11.0.22 |
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