CVE-2026-31692
- Source
- https://cve.org/CVERecord?id=CVE-2026-31692
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31692.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31692
- Downstream
- Related
- Published
- 2026-04-30T10:34:51Z
- Modified
- 2026-08-12T03:51:27Z
- Summary
- rtnetlink: add missing netlink_ns_capable() check for peer netns
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
rtnetlink: add missing netlink_ns_capable() check for peer netns
rtnl_newlink() lacks a CAP_NET_ADMIN capability check on the peer network namespace when creating paired devices (veth, vxcan, netkit). This allows an unprivileged user with a user namespace to create interfaces in arbitrary network namespaces, including init_net.
Add a netlink_ns_capable() check for CAP_NET_ADMIN in the peer namespace before allowing device creation to proceed.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31692.json" }- References
-
- https://git.kernel.org/stable/c/0975b64ffb34560042090a5986c3a02e6c80f36f
- https://git.kernel.org/stable/c/7b735ef81286007794a227ce2539419479c02a5f
- https://git.kernel.org/stable/c/d04cc16d3624218a5458b2b664ae431f1b3b334d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31692.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31692
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git