{"id":"CVE-2009-2816","aliases":["EUVD-2009-2806","GHSA-2wxv-94xf-vqv2"],"status":"published","title":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari...","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01553,"percentile":0.75298,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2009-11-13T15:00:00Z","modified":"2026-06-16T23:10:16Z","products":[{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"safari"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"google","product":"chrome"},{"vendor":"opensuse","product":"opensuse"}],"references":[{"url":"http://secunia.com/advisories/43068","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/3233","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Mailing List","Patch","Vendor Advisory","fix"]},{"url":"http://www.vupen.com/english/advisories/2009/3217","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0212","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://support.apple.com/kb/HT4225","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00545.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","Third Party Advisory","web"]},{"url":"http://osvdb.org/59967","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link","web"]},{"url":"http://www.securityfocus.com/bid/36997","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","web"]},{"url":"http://support.apple.com/kb/HT3949","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"http://www.securitytracker.com/id?1023165","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","web"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6516","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","Third Party Advisory","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Third Party Advisory","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/54239","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=525789","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00549.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","Third Party Advisory","web"]},{"url":"http://secunia.com/advisories/37358","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://osvdb.org/59940","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link","web"]},{"url":"http://secunia.com/advisories/37397","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://secunia.com/advisories/37393","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Mailing List","Vendor Advisory","article"]},{"url":"http://secunia.com/advisories/37346","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-2816"},{"url":"https://github.com/advisories/GHSA-2wxv-94xf-vqv2"}],"sources":{"cve":[{"id":"CVE-2009-2816","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","status":"published","published":"2009-11-13T15:00:00Z","modified":"2024-08-07T06:07:36.976Z","updated_at":"2026-11-02T14:33:23.041383Z"}],"euvd":[{"id":"EUVD-2009-2806","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","status":"published","published":"2009-11-13T15:00:00Z","modified":"2024-08-07T06:07:36Z","updated_at":"2026-11-03T01:39:15.952935Z"}],"ghsa":[{"id":"GHSA-2wxv-94xf-vqv2","title":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari...","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","status":"published","published":"2022-05-02T03:38:54Z","modified":"2023-01-31T05:08:02Z","cwes":["CWE-352"],"updated_at":"2026-11-02T14:49:19.380815Z"}],"nvd":[{"id":"CVE-2009-2816","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","status":"published","published":"2009-11-13T15:30:00.563Z","modified":"2026-06-16T23:10:16.84Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:01:37.939838Z"}],"osv":[{"id":"CVE-2009-2816","description":"The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.","status":"withdrawn","published":"2009-11-13T15:30:00Z","modified":"2024-06-04T04:00:19Z","updated_at":"2026-11-02T15:43:57.714116Z"}]}}