# CVE-2026-101296: tomcat9: A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with...

CVE-2026-101296 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-101296, released October 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-101296
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0063
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 20, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tomcat sles 15.6 | 9.0.123-150200.126.1 | [SUSE-SU-2026:5116-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5116-1.md) | Nov 7, 2026 |
| Linux | tomcat sles 15.7 | 9.0.123-150200.126.1 | [SUSE-SU-2026:5116-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5116-1.md) | Nov 7, 2026 |
| Linux | tomcat10 sles 15.6 | 10.1.61-150200.5.85.1 | [SUSE-SU-2026:5073-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5073-1.md) | Nov 7, 2026 |
| Linux | tomcat10 sles 15.7 | 10.1.61-150200.5.85.1 | [SUSE-SU-2026:5073-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5073-1.md) | Nov 7, 2026 |
| Linux | tomcat9 Debian 12.15 (bookworm) | 9.0.70-2 | [DEBIAN-CVE-2026-101296](https://patchblox.com/security/data/fix/linux/debian-cve-2026-101296.md) | Oct 21, 2026 |
| Linux | tomcat9 Debian 13.5 (trixie) | 9.0.70-2 | [DEBIAN-CVE-2026-101296](https://patchblox.com/security/data/fix/linux/debian-cve-2026-101296.md) | Oct 21, 2026 |
| Linux | tomcat9 Debian 14 | 9.0.70-2 | [DEBIAN-CVE-2026-101296](https://patchblox.com/security/data/fix/linux/debian-cve-2026-101296.md) | Oct 21, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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