Missing Critical Step in Authentication Affecting tomcat9 package, versions <9.0.70-2
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published17 Jul 2026
- disclosed29 Jun 2026
Introduced: 29 Jun 2026
CVE-2026-55957 (opens in a new tab)How to fix?
Upgrade Echo:latest tomcat9 to version 9.0.70-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.