CVE-2026-101296
published 2026-10-20CVE-2026-101296: A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication…
PriorityP265critical9.1CVSS 4.0
AVNACLATPPRNUINVCHVIHVANSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.63%
49.8th percentile
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
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, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache_software_foundation | apache_tomcat | 10.1.0-M1 – 10.1.60 | — |
| apache_software_foundation | apache_tomcat | 11.0.0-M1 – 11.0.26 | — |
| 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 – 9.0.122 | — |
CVSS provenance
nvdv4.09.1CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_redhat9.1CRITICAL
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Red Hat
tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
vendor_redhat·2026-10-20·CVSS 9.1
CVE-2026-101296 [CRITICAL] CWE-303 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
A flaw was found in Apache Tomcat. When the Java Naming and Directory Interface (JNDI) realm is configured with a non-Generic Security Service Application Program Interface (GSSAPI) Simple Authentication and Security Layer (SASL) mechanism, a missing verification step allows an attacker to bypass authentication without providing the correct password. An unauthenticated remote attacker can exploit this vulnerability to gain unauthorized access to protected resources.
Mitigation: --- CME Mitigation Guidance (2026-10-20) ---
Disclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from h
GHSA
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate witho
ghsa_unreviewed·2026-10-20
CVE-2026-101296 [CRITICAL] CWE-304 A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate witho
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
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, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-44]
bugzilla·2026-10-21·CVSS 9.1
CVE-2026-101296 [CRITICAL] CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-44]
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-44]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 t
Bugzilla
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-43]
bugzilla·2026-10-21·CVSS 9.1
CVE-2026-101296 [CRITICAL] CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-43]
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-43]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 t
Bugzilla
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-rawhide]
bugzilla·2026-10-21·CVSS 9.1
CVE-2026-101296 [CRITICAL] CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-rawhide]
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm [fedora-rawhide]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.
Bugzilla
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
bugzilla·2026-10-20·CVSS 9.1
CVE-2026-101296 [CRITICAL] CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
CVE-2026-101296 tomcat: tomcat: Authentication bypass via non-GSSAPI SASL in JNDI realm
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.
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, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
2026-10-20
Published