CVE search · CVE-2026-101305
CVE-2026-101305
high 8.8
renameat(2) did not enforce FD_RESOLVE_BENEATH on its directory arguments. A jailed process could rename a directory relative to a restricted descriptor, then escape the jail root via fchdir(2). This requires the directory to reside on a filesystem that is also reachable from the jail's root. A process in a jail that has received a directory file descriptor from another jail can use these techniques to escape the jail's filesystem root restriction.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- secteam@freebsd.org
- Weakness
- CWE-273
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- freebsd · freebsd
References
- https://security.freebsd.org/advisories/FreeBSD-SA-26:66.jail.ascPatchVendor Advisory