{"id":"CVE-2011-4461","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-4461","generatedAt":"2026-10-27T23:08:38.021Z","title":"Jetty 8.1.0.RC2 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.","description":"Jetty 8.1.0.RC2 and earlier computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.","published":"2011-12-30T01:55:01.000Z","lastModified":"2026-06-16T23:34:56.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-310"],"affected":["oracle/sun storage common array manager","mortbay/jetty"],"epss":{"score":0.04922,"percentile":0.92062,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (4.92%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=143387688830075&w=2","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/47408","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48981","source":"cve@mitre.org"},{"url":"http://www.kb.cert.org/vuls/id/903934","tags":["US Government Resource"],"source":"cve@mitre.org"},{"url":"http://www.nruns.com/_downloads/advisory28122011.pdf","source":"cve@mitre.org"},{"url":"http://www.ocert.org/advisories/ocert-2011-003.html","source":"cve@mitre.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html","source":"cve@mitre.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","source":"cve@mitre.org"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1026475","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-1429-1","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/72017","source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20190307-0004/","source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=143387688830075&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/47408","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48981","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kb.cert.org/vuls/id/903934","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.nruns.com/_downloads/advisory28122011.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ocert.org/advisories/ocert-2011-003.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026475","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1429-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/72017","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190307-0004/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4461","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}