Apache Tomcat may be started without proper security settings if errors are encountered…
Priority LOW 39CWE-254Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub.
Summary
Apache Tomcat may be started without proper security settings if errors are encountered while reading the web.xml file, which could allow attackers to bypass intended restrictions.
Why it matters now
EPSS 0.03804 90th percentileScored 2026-11-07
Fix Fixed org.apache.tomcat:tomcat (Maven): 4.0b7
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.apache.tomcat:tomcat (Maven) | before 4.0b7 | 4.0b7 | Patch available | GHSA-p543-jg43-9pm5 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.apache.tomcat:tomcat (Maven) Vendor— Affected before 4.0b7 Fixed in 4.0b7 Patch available GHSA-p543-jg43-9pm5
Remediation
- Fix · GHSA-p543-jg43-9pm5 org.apache.tomcat:tomcat (Maven) Fixed in 4.0b7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0493
- 2026-10-03 Alias added: GHSA-p543-jg43-9pm5
- 2026-10-30 EPSS moved to the 90th–95th percentile
References
Other 10
- http://www.apachelabs.org/tomcat-dev/200108.mbox/%3C20010810000819.6350.qmail%40icarus.apache.org%3E
- 20020325 re: Tomcat Security Exposure
- [tomcat-dev] 20190319 svn commit: r1855831 [21/30] - in /tomcat/site/trunk: ./ docs/ xdocs/
- [tomcat-dev] 20190325 svn commit: r1856174 [19/29] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/
- [tomcat-dev] 20200213 svn commit: r1873980 [24/34] - /tomcat/site/trunk/docs/
- https://github.com/apache/tomcat
- https://lists.apache.org/thread.html/29dc6c2b625789e70a9c4756b5a327e6547273ff8bde7e0327af48c5@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/c62b0e3a7bf23342352a5810c640a94b6db69957c5c19db507004d74@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rb71997f506c6cc8b530dd845c084995a9878098846c7b4eacfae8db3@%3Cdev.tomcat.apache.org%3E
- https://web.archive.org/web/20020903071650/http://www.iss.net/security_center/static/9863.php
More Apache Tomcat vulnerabilities
- TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
- TI-2020-01862 Improper privilege management in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
- TI-2016-07192 Improper access control in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
- TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
- TI-2017-09340 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
- TI-2026-26741 Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2002-0493 · CVE Program
- CVE-2002-0493 · NVD
- FIRST EPSS
- GHSA-p543-jg43-9pm5 · GitHub Advisory Database · CC BY 4.0
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