Description
The Content Security Policy implementation in WebKit in Apple Safari before 6.2.8, 7.x before 7.1.8, and 8.x before 8.0.8, as used in iOS before 8.4.1 and other products, does not properly restrict cookie transmission for report requests, which allows remote attackers to obtain sensitive information via vectors involving (1) a cross-origin request or (2) a private-browsing request.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qtwebkit-source +1 | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk | 2.4.10-0ubuntu1 | — |
| Ubuntu 14.04 LTS | webkitgtk | 2.4.10-0ubuntu0.14.04.1 | USN-2937-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gtk3 | 2.4.11-3.3 | openSUSE-SU-2024:10461-1 |
Advisories 2
- USN-2937-1 webkitgtk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10461-1 libjavascriptcoregtk-1_0-0-2.4.11-3.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 1033274 vdb-entry
- https://support.apple.com/kb/HT205030
- APPLE-SA-2015-08-13-3 vendor-advisory
- openSUSE-SU-2016:0915 vendor-advisory
- 76341 vdb-entry
- APPLE-SA-2015-08-13-1 vendor-advisory
- https://support.apple.com/kb/HT205033
- USN-2937-1 vendor-advisory