{"id":"CVE-2012-6051","aliases":["EUVD-2012-5925","GHSA-cj23-3rw6-m3cc"],"status":"published","title":"Google CityHash computes hash values without properly restricting the ability to trigger hash...","description":"Google CityHash computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0061,"percentile":0.49494,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-310"],"published":"2012-11-28T11:00:00Z","modified":"2026-06-16T23:47:43Z","products":[{"vendor":"google","product":"cityhash"}],"references":[{"url":"http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.131002.net/data/talks/appsec12_slides.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://2012.appsec-forum.ch/conferences/#c17","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://code.google.com/p/cityhash/source/browse/trunk/NEWS","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-6051"},{"url":"https://github.com/advisories/GHSA-cj23-3rw6-m3cc"}],"sources":{"cve":[{"id":"CVE-2012-6051","description":"Google CityHash computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack.","status":"published","published":"2012-11-28T11:00:00Z","modified":"2024-09-16T23:06:27.792Z","updated_at":"2026-11-02T14:34:51.269982Z"}],"euvd":[{"id":"EUVD-2012-5925","description":"Google CityHash computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack.","status":"published","published":"2012-11-28T11:00:00Z","modified":"2024-09-16T23:06:27Z","updated_at":"2026-11-03T00:54:56.752396Z"}],"ghsa":[{"id":"GHSA-cj23-3rw6-m3cc","title":"Google CityHash computes hash values without properly restricting the ability to trigger hash...","description":"Google CityHash computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack.","status":"published","published":"2022-05-17T05:18:21Z","modified":"2023-01-28T05:03:43Z","updated_at":"2026-11-02T14:44:02.066384Z"}],"nvd":[{"id":"CVE-2012-6051","description":"Google CityHash computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack.","status":"published","published":"2012-11-28T13:03:10.323Z","modified":"2026-06-16T23:47:43.713Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:16.536025Z"}]}}