{"id":"CVE-2011-3624","aliases":["EUVD-2011-3583","GHSA-rc82-v3mm-rhj2"],"status":"published","title":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X...","description":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01521,"percentile":0.74778,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2019-11-26T02:50:40Z","modified":"2026-06-16T23:33:38Z","products":[{"vendor":"hackerone","product":"ruby"},{"vendor":"ruby","product":"ruby"},{"vendor":"ruby-lang","product":"ruby"}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2011-3624","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3624","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/cve-2011-3624","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://redmine.ruby-lang.org/issues/5418","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-3624"},{"url":"https://github.com/advisories/GHSA-rc82-v3mm-rhj2"}],"sources":{"cve":[{"id":"CVE-2011-3624","description":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.","status":"published","published":"2019-11-26T02:50:40Z","modified":"2024-08-06T23:37:48.555Z","updated_at":"2026-11-02T14:35:36.968002Z"}],"euvd":[{"id":"EUVD-2011-3583","description":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.","status":"published","published":"2019-11-26T02:50:40Z","modified":"2024-08-06T23:37:48Z","updated_at":"2026-11-03T01:39:50.860626Z"}],"ghsa":[{"id":"GHSA-rc82-v3mm-rhj2","title":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X...","description":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.","status":"published","published":"2022-04-22T00:24:17Z","modified":"2024-04-03T23:05:37Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:55:47.283285Z"}],"nvd":[{"id":"CVE-2011-3624","description":"Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.","status":"published","published":"2019-11-26T03:15:10.91Z","modified":"2026-06-16T23:33:38.83Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:02:12.945371Z"}]}}