{"id":"CVE-1999-1481","aliases":["EUVD-1999-1462","GHSA-fx2h-93c2-339q"],"status":"published","title":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass...","description":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03573,"percentile":0.89466,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:50:32Z","exploits":[{"source":"exploitdb","id":"EDB-19567","title":"National Science Foundation Squid Web Proxy 1.0/1.1/2.1 - Authentication Failure","type":"remote","platform":"linux","date":"1999-10-25","verified":true,"url":"https://www.exploit-db.com/exploits/19567"}],"products":[{"vendor":"national_science_foundation","product":"squid_web_proxy"}],"references":[{"url":"http://www.securityfocus.com/archive/1/33295","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/3433","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.squid-cache.org/Versions/v2/2.2/bugs/","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/741","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1481"},{"url":"http://www.squid-cache.org/Versions/v2/2.2/bugs"},{"url":"https://github.com/advisories/GHSA-fx2h-93c2-339q"}],"sources":{"cve":[{"id":"CVE-1999-1481","description":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:18:07.351Z","updated_at":"2026-11-02T14:33:53.60785Z"}],"euvd":[{"id":"EUVD-1999-1462","description":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:18:07Z","updated_at":"2026-11-03T03:50:42.451061Z"}],"ghsa":[{"id":"GHSA-fx2h-93c2-339q","title":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass...","description":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.","status":"published","published":"2022-04-30T18:12:34Z","modified":"2025-04-03T03:36:56Z","updated_at":"2026-11-02T15:00:37.05918Z"}],"nvd":[{"id":"CVE-1999-1481","description":"Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.","status":"published","published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:50:32.043Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T13:58:51.654586Z"}]}}