{"apiVersion":"1.0","identifier":"CVE-2026-77791","description":"Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.","publishedAt":"2026-09-23T12:17:06","lastModifiedAt":"2026-09-23T13:17:29","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77791","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","epssProbability":null,"riskScore":null,"affectedProduct":"Apache Tomcat","affectedVersions":"<11.0.26, <10.1.60, <9.0.122, <8.5.100","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-77791","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-77791","en":"https://www.redsauce.net/en/cves/CVE-2026-77791","fr":"https://www.redsauce.net/fr/cves/CVE-2026-77791","pt":"https://www.redsauce.net/pt/cves/CVE-2026-77791","de":"https://www.redsauce.net/de/cves/CVE-2026-77791","sk":"https://www.redsauce.net/sk/cves/CVE-2026-77791","el":"https://www.redsauce.net/el/cves/CVE-2026-77791"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-77791"}}