{"id":"CVE-2011-5034","aliases":["EUVD-2022-5271","GHSA-v3h8-rw48-h4gr"],"status":"published","title":"Apache Geronimo Hash Collisions Cause DoS","description":"Apache Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.80569,"percentile":0.99626,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-20","CWE-400"],"published":"2011-12-30T01:00:00Z","modified":"2026-06-16T23:35:48Z","exploits":[{"source":"exploitdb","id":"EDB-2012","title":"MyBulletinBoard (MyBB) 1.1.5 - 'CLIENT-IP' SQL Injection","type":"webapps","platform":"php","date":"2006-07-15","verified":true,"url":"https://www.exploit-db.com/exploits/2012"},{"source":"metasploit","id":"auxiliary/dos/http/hashcollision_dos","title":"Hashtable Collisions","type":"auxiliary","date":"2011-12-28","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/dos/http/hashcollision_dos"}],"fixes":[{"ecosystem":"Maven","package":"org.apache.geronimo:geronimo","fixed_in":["2.2.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.geronimo:geronimo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.geronimo:geronimo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1"}]}],"versions":["1.2-beta","2.0.1","2.0.2","2.1","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.2"]}],"products":[{"vendor":"apache","product":"geronimo"}],"references":[{"url":"https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://www.nruns.com/_downloads/advisory28122011.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://secunia.com/advisories/47412","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/903934","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US 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Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","status":"published","published":"2011-12-30T01:00:00Z","modified":"2024-08-07T00:23:39.535Z","updated_at":"2026-11-02T14:35:36.252742Z"}],"euvd":[{"id":"EUVD-2022-5271","description":"Apache Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","status":"published","published":"2011-12-30T01:00:00Z","modified":"2024-08-07T00:23:39Z","updated_at":"2026-11-03T01:39:47.649601Z"}],"ghsa":[{"id":"GHSA-v3h8-rw48-h4gr","title":"Apache Geronimo Hash Collisions Cause DoS","description":"Apache Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","status":"published","published":"2022-05-13T01:07:39Z","modified":"2024-01-15T19:14:56Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:37:31.550603Z"}],"nvd":[{"id":"CVE-2011-5034","description":"Apache Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","status":"published","published":"2011-12-30T01:55:01.61Z","modified":"2026-06-16T23:35:48.793Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:11.800512Z"}],"osv":[{"id":"GHSA-v3h8-rw48-h4gr","title":"Apache Geronimo Hash Collisions Cause DoS","description":"Apache Geronimo 2.2.1 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.  NOTE: this might overlap CVE-2011-4461.","status":"published","published":"2022-05-13T01:07:39Z","modified":"2024-12-07T05:37:51.766019Z","cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:56.639206Z"}]}}