qt: MITM in the WebKit's Cross-Origin Resource Sharing (CORS) implementation
Published Nov 13, 2009
6.8
MEDIUMCVSS 2.0
EPSS 1.55%
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.
Affected products
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.55% (0.01553) | 74.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01553) | 71.82th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.15% (0.02154) | 83.09th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.22% (0.00220) | 60.89th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.22% (0.00220) | 60.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00220) | 58.08th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.93% (0.03932) | 85.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.93% (0.03932) | 84.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.93% (0.03932) | 67.70th | v2 (v2022.01.01) |
References (25)
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html vendor-advisoryx_refsource_APPLEMailing ListPatchVendor Advisory
- http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html vendor-advisoryx_refsource_APPLEMailing ListVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://osvdb.org/59940 vdb-entryx_refsource_OSVDBBroken Link
- http://osvdb.org/59967 vdb-entryx_refsource_OSVDBBroken Link
- http://secunia.com/advisories/37346 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/37358 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/37393 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/37397 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/43068 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://support.apple.com/kb/HT3949 x_refsource_CONFIRMPatchVendor Advisory
- http://support.apple.com/kb/HT4225 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/36997 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1023165 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2009/3217 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/3233 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0212 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-2816 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=525789 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54239 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2009-2816
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6516 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2009-2816
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00545.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00549.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
Change history (0)
No recorded changes yet.