{"id":"CVE-2015-0881","aliases":["DEBIAN-CVE-2015-0881","EUVD-2015-0891","GHSA-wp8h-3f2r-jqrj"],"status":"published","title":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary...","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.04507,"percentile":0.91579,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-02-20T11:00:00Z","modified":"2026-09-09T06:47:23Z","fixes":[{"ecosystem":"Debian:12","package":"squid","fixed_in":["4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"squid","fixed_in":["4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"squid","fixed_in":["4.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1-1"}]}]}],"products":[{"vendor":"squid-cache","product":"squid"}],"references":[{"url":"http://jvndb.jvn.jp/jvndb/JVNDB-2015-000019","tags":["third-party-advisory","x_refsource_JVNDB","x_transferred","Vendor Advisory","advisory"]},{"url":"http://jvn.jp/en/jp/JVN64455813/index.html","tags":["third-party-advisory","x_refsource_JVN","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-0881"},{"url":"https://github.com/advisories/GHSA-wp8h-3f2r-jqrj"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-0881","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2015-0881","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2015-02-20T11:00:00Z","modified":"2024-08-06T04:26:11.206Z","updated_at":"2026-11-02T14:35:45.088047Z"}],"euvd":[{"id":"EUVD-2015-0891","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2015-02-20T11:00:00Z","modified":"2024-08-06T04:26:11Z","updated_at":"2026-11-03T02:22:17.470916Z"}],"ghsa":[{"id":"GHSA-wp8h-3f2r-jqrj","title":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary...","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2022-05-17T04:15:16Z","modified":"2023-01-28T05:01:22Z","updated_at":"2026-11-02T14:43:33.286467Z"}],"nvd":[{"id":"CVE-2015-0881","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2015-02-20T11:59:04.84Z","modified":"2026-06-17T00:21:05.23Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:03:01.643178Z"}],"osv":[{"id":"CVE-2015-0881","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2015-02-20T11:59:04Z","modified":"2026-04-10T03:45:04.209925Z","updated_at":"2026-11-02T15:44:00.097545Z"},{"id":"DEBIAN-CVE-2015-0881","description":"CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.","status":"published","published":"2015-02-20T11:59:04.84Z","modified":"2026-09-09T06:47:23.581053061Z","updated_at":"2026-11-02T15:45:26.442161Z"}]}}