{"id":"CVE-2011-0401","aliases":["EUVD-2011-0427","GHSA-r4j4-q532-2fpq"],"status":"published","title":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which...","description":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.","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":"2026-11-06","score":0.01653,"percentile":0.76655,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2011-01-10T19:18:00Z","modified":"2026-06-16T23:27:17Z","products":[{"vendor":"matomo","product":"matomo"}],"references":[{"url":"http://www.securityfocus.com/bid/45787","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://dev.piwik.org/trac/ticket/1910","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://dev.piwik.org/trac/ticket/1279#comment:13","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://piwik.org/blog/2011/01/piwik-1-1-2/","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/64638","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://osvdb.org/70381","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0401"},{"url":"http://piwik.org/blog/2011/01/piwik-1-1-2"},{"url":"https://github.com/advisories/GHSA-r4j4-q532-2fpq"}],"sources":{"cve":[{"id":"CVE-2011-0401","description":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.","status":"published","published":"2011-01-10T19:18:00Z","modified":"2024-08-06T21:51:08.771Z","updated_at":"2026-11-02T14:35:39.447402Z"}],"euvd":[{"id":"EUVD-2011-0427","description":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.","status":"published","published":"2011-01-10T19:18:00Z","modified":"2024-08-06T21:51:08Z","updated_at":"2026-11-03T01:56:00.564642Z"}],"ghsa":[{"id":"GHSA-r4j4-q532-2fpq","title":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which...","description":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.","status":"published","published":"2022-05-13T01:30:30Z","modified":"2025-04-11T03:43:54Z","updated_at":"2026-11-02T15:01:07.765441Z"}],"nvd":[{"id":"CVE-2011-0401","description":"Piwik before 1.1 does not properly limit the number of files stored under tmp/sessions/, which might allow remote attackers to cause a denial of service (inode consumption) by establishing many sessions.","status":"published","published":"2011-01-10T20:00:17.47Z","modified":"2026-06-16T23:27:17.247Z","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-264"],"updated_at":"2026-11-02T14:02:06.042049Z"}]}}