CVE-2026-55957
An attacker can exploit multiple vulnerabilities in Apache Tomcat to bypass security measures, cause a Denial-of-Service condition, conduct Cross-Site Scripting attacks, or trigger other unspecified impacts.
CSIRTS triage
- What
- Multiple vulnerabilities have been identified.
- Who is affected
- Users of Apache Tomcat are affected.
- Urgency
- Remediation is necessary as vulnerabilities could be exploited in the future.
- Action
- Monitor for updates from Apache.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.46% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] Apache Tomcat: Multiple vulnerabilitiescert-bund · 2026-07-09
- unknownApache Tomcat Multiple Vulnerabilitieshkcert · 2026-07-02
- highCVE-2026-55957: Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was …nvd · 2026-06-29
External references
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