CVE-2026-55957
published 2026-06-29CVE-2026-55957: Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers…
PriorityP350high7.3CVSS 3.1
AVNACLPRNUINSUCLILAL
EPSS
0.46%
37.0th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | tomcat | < 9.0.101 | 9.0.101 |
| apache | tomcat | >= 10.1.0 < 10.1.37 | 10.1.37 |
| apache | tomcat | >= 11.0.0 < 11.0.5 | 11.0.5 |
| apache_software_foundation | apache_tomcat | 10.1.0-M1 – 10.1.36 | — |
| apache_software_foundation | apache_tomcat | 11.0.0-M1 – 11.0.4 | — |
| apache_software_foundation | apache_tomcat | 7.0.0 – 7.0.109 | — |
| apache_software_foundation | apache_tomcat | 8.5.0 – 8.5.100 | — |
| apache_software_foundation | apache_tomcat | 9.0.0.M1 – 9.0.100 | — |
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VulDB
Apache Tomcat up to 11.0.4 critical step in authentication (EUVD-2026-40233)
vuldb·2026-06-30
CVE-2026-55957 [CRITICAL] Apache Tomcat up to 11.0.4 critical step in authentication (EUVD-2026-40233)
A vulnerability marked as critical has been reported in Apache Tomcat up to 11.0.4. This vulnerability affects unknown code. This manipulation causes missing critical step in authentication.
This vulnerability is tracked as CVE-2026-55957. The attack is possible to be carried out remotely. No exploit exists.
It is suggested to upgrade the affected component.
GHSA
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 corre
ghsa_unreviewed·2026-06-29
CVE-2026-55957 [HIGH] CWE-304 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 corre
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.
No detection rules found.
No public exploits indexed.
2026-06-29
Published