CVE•Published 2026-07-28•Modified 2026-07-28•0 articles on news•4 live references•NVD data
CVE-2026-66299
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web application are not affected by this issue. Users are recommended to remove the examples web application or to upgrade to version 11.0.25, 10.1.58 or 9.0.121 (when released), which fix the issue.
Timeline
Published 2026-07-28
Modified 2026-07-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-66299Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-66299Censys host search filtered to this CVE id.
grep.app
CVE-2026-66299Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-66299GitHub code search for direct mentions.
Google dork
"CVE-2026-66299" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-66299 on GitHub.
We haven't classified any articles referencing CVE-2026-66299 yet. The external references above still apply.