CVE-2026-72243selinux: check connect-related permissions on TCP Fast Open
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.
- CVSS
- 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from cf60af03ca4e71134206809ea892e49b92a88896 before 11406d0d7e11b4e525bb2ace2c70107031d058da; from cf60af03ca4e71134206809ea892e49b92a88896 before e507633bf76bccf1a6af27771fb0d6e2862b7eac; from cf60af03ca4e71134206809ea892e49b92a88896 before d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3; from cf60af03ca4e71134206809ea892e49b92a88896 before fc633a598206d4f23af782db7c0b5f3a82751d2c; from cf60af03ca4e71134206809ea892e49b92a88896 before 646ebbc5f2ff9147d084e1213143f091026a611c; from cf60af03ca4e71134206809ea892e49b92a88896 before 44c74d27d1b9aaa99fa8a83640c1223575262b80 | CNA record |
References
- https://git.kernel.org/stable/c/11406d0d7e11b4e525bb2ace2c70107031d058da
- https://git.kernel.org/stable/c/e507633bf76bccf1a6af27771fb0d6e2862b7eac
- https://git.kernel.org/stable/c/d028bc080a0dcd6a7f8e1ae1bd32dda696505ba3
- https://git.kernel.org/stable/c/fc633a598206d4f23af782db7c0b5f3a82751d2c
- https://git.kernel.org/stable/c/646ebbc5f2ff9147d084e1213143f091026a611c
- https://git.kernel.org/stable/c/44c74d27d1b9aaa99fa8a83640c1223575262b80
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.