# CVE-2026-55276: Apache Tomcat: Logged effective web.xml is incomplete

> CVE-2026-55276: Apache Tomcat: Logged effective web.xml is incomplete. CVSS 9.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-55276
Last updated: 2026-10-25T21:10:00Z

- Published: 2026-06-29 20:42 UTC · Updated: 2026-10-25 21:10 UTC · Assigner: apache
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS: 0.61%, 49th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-670

## Description

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.

## Affected vendors and products

- Apache Software Foundation: Apache Tomcat

## Tracked companies

- [Confluence](https://rewindex.com/company/confluence.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-55276)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-55276)
- [https://lists.apache.org/thread/jy09xjlzn6r2qwvqoph8vcmf959yq68v](https://lists.apache.org/thread/jy09xjlzn6r2qwvqoph8vcmf959yq68v)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-55276 · Markdown: https://rewindex.com/cve/CVE-2026-55276.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-55276 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:05.013Z