The Private Browsing feature in Apple Safari before 5.1.1 on Mac OS X does not properly recognize the Always value of the Block Cookies setting, which makes it easier for remote web servers to track users via a cookie.
2011-10-14T10:55:09.637
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | apple | safari | * | Yes |
| Application | apple | safari | ≤ 5.1 | Yes |
| Application | apple | safari | 1.0 | Yes |
| Application | apple | safari | 1.0 | Yes |
| Application | apple | safari | 1.0 | Yes |
| Application | apple | safari | 1.0.0 | Yes |
| Application | apple | safari | 1.0.0b1 | Yes |
| Application | apple | safari | 1.0.0b2 | Yes |
| Application | apple | safari | 1.0.1 | Yes |
| Application | apple | safari | 1.0.2 | Yes |
| Application | apple | safari | 1.0.3 | Yes |
| Application | apple | safari | 1.0.3 | Yes |
| Application | apple | safari | 1.0.3 | Yes |
| Application | apple | safari | 1.0b1 | Yes |
| Application | apple | safari | 1.1 | Yes |
| Application | apple | safari | 1.1.0 | Yes |
| Application | apple | safari | 1.1.1 | Yes |
| Application | apple | safari | 1.2 | Yes |
| Application | apple | safari | 1.2.0 | Yes |
| Application | apple | safari | 1.2.1 | Yes |
| Application | apple | safari | 1.2.2 | Yes |
| Application | apple | safari | 1.2.3 | Yes |
| Application | apple | safari | 1.2.4 | Yes |
| Application | apple | safari | 1.2.5 | Yes |
| Application | apple | safari | 1.3 | Yes |
| Application | apple | safari | 1.3.0 | Yes |
| Application | apple | safari | 1.3.1 | Yes |
| Application | apple | safari | 1.3.2 | Yes |
| Application | apple | safari | 1.3.2 | Yes |
| Application | apple | safari | 1.3.2 | Yes |
| Application | apple | safari | 2 | Yes |
| Application | apple | safari | 2.0 | Yes |
| Application | apple | safari | 2.0.0 | Yes |
| Application | apple | safari | 2.0.1 | Yes |
| Application | apple | safari | 2.0.2 | Yes |
| Application | apple | safari | 2.0.3 | Yes |
| Application | apple | safari | 2.0.3 | Yes |
| Application | apple | safari | 2.0.3 | Yes |
| Application | apple | safari | 2.0.3 | Yes |
| Application | apple | safari | 2.0.3 | Yes |
| Application | apple | safari | 2.0.4 | Yes |
| Application | apple | safari | 2.0.4 | Yes |
| Application | apple | safari | 3 | Yes |
| Application | apple | safari | 3.0 | Yes |
| Application | apple | safari | 3.0.0 | Yes |
| Application | apple | safari | 3.0.0 | Yes |
| Application | apple | safari | 3.0.0b | Yes |
| Application | apple | safari | 3.0.0b | Yes |
| Application | apple | safari | 3.0.1 | Yes |
| Application | apple | safari | 3.0.1 | Yes |
| Application | apple | safari | 3.0.1 | Yes |
| Application | apple | safari | 3.0.1b | Yes |
| Application | apple | safari | 3.0.1b | Yes |
| Application | apple | safari | 3.0.2 | Yes |
| Application | apple | safari | 3.0.2 | Yes |
| Application | apple | safari | 3.0.2b | Yes |
| Application | apple | safari | 3.0.2b | Yes |
| Application | apple | safari | 3.0.3 | Yes |
| Application | apple | safari | 3.0.3 | Yes |
| Application | apple | safari | 3.0.3b | Yes |
| Application | apple | safari | 3.0.3b | Yes |
| Application | apple | safari | 3.0.4 | Yes |
| Application | apple | safari | 3.0.4 | Yes |
| Application | apple | safari | 3.0.4b | Yes |
| Application | apple | safari | 3.0.4b | Yes |
| Application | apple | safari | 3.1.0 | Yes |
| Application | apple | safari | 3.1.0 | Yes |
| Application | apple | safari | 3.1.0b | Yes |
| Application | apple | safari | 3.1.0b | Yes |
| Application | apple | safari | 3.1.1 | Yes |
| Application | apple | safari | 3.1.1b | Yes |
| Application | apple | safari | 3.1.2 | Yes |
| Application | apple | safari | 3.1.2b | Yes |
| Application | apple | safari | 3.2.0 | Yes |
| Application | apple | safari | 3.2.0b | Yes |
| Application | apple | safari | 3.2.1 | Yes |
| Application | apple | safari | 3.2.1b | Yes |
| Application | apple | safari | 3.2.2 | Yes |
| Application | apple | safari | 3.2.2b | Yes |
| Application | apple | safari | 4.0 | Yes |
| Application | apple | safari | 4.0 | Yes |
| Application | apple | safari | 4.0.0b | Yes |
| Application | apple | safari | 4.0.1 | Yes |
| Application | apple | safari | 4.0.2 | Yes |
| Application | apple | safari | 4.0.3 | Yes |
| Application | apple | safari | 4.0.4 | Yes |
| Application | apple | safari | 4.0.5 | Yes |
| Application | apple | safari | 4.1 | Yes |
| Application | apple | safari | 4.1.1 | Yes |
| Application | apple | safari | 4.1.2 | Yes |
| Application | apple | safari | 5.0 | Yes |
| Application | apple | safari | 5.0.1 | Yes |
| Application | apple | safari | 5.0.2 | Yes |
| Application | apple | safari | 5.0.3 | Yes |
| Application | apple | safari | 5.0.4 | Yes |
| Application | apple | safari | 5.0.5 | Yes |
| Application | apple | safari | 5.0.6 | Yes |
| Operating System | apple | mac_os_x | ≤ 10.7.1 | No |
| Operating System | apple | mac_os_x_server | ≤ 10.7.1 | No |