[UPDATE] [high] Apache Tomcat and Tomcat Native: Multiple vulnerabilities
A remote, anonymous attacker can exploit multiple vulnerabilities in Apache Tomcat and Tomcat Native to disclose information and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities can disclose information and bypass security measures.
- Who is affected
- Deployments of Apache Tomcat and Tomcat Native are affected.
- Urgency
- Remediation is important as vulnerabilities are high severity, but not currently exploited.
- Action
- Update to the latest version of Apache Tomcat and Tomcat Native.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0443
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-666140.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
- Low exploitation riskCVE-2026-247330.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
- Low exploitation riskCVE-2026-247340.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-66614 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-24733 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-24734 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[UPDATE] [high] Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira and Jira Service Management: …cert-bund
- high[NEW] [high] Oracle Siebel CRM: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Atlassian products (Bamboo, Bitbucket, Confluence, Crucible, Fisheye, and Jira): Multiple vuln…cert-bund
Recent advisories for Apache Tomcat and
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- medium[NEW] [medium] Apache Tomcat: Multiple vulnerabilitiescert-bund · 2026-07-31
- medium[NEW] [medium] Apache Tomcat: Vulnerability allows Denial of Servicecert-bund · 2026-07-29
- unknownVulnerability in Apache Tomcat (July 29, 2026)cert-fr-avis · 2026-07-29
- criticalCVE-2026-66713: Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component in Apache…nvd · 2026-07-28
- highCVE-2026-66299: Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. Thi…nvd · 2026-07-28
- medium[UPDATE] [medium] Apache Tomcat and Tomcat Native: Multiple vulnerabilitiescert-bund · 2026-07-27
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