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.
References
Configurations
Configuration 1 (hide)
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History
06 May 2026, 20:05
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/0975b64ffb34560042090a5986c3a02e6c80f36f - Patch | |
| References | () https://git.kernel.org/stable/c/7b735ef81286007794a227ce2539419479c02a5f - Patch | |
| References | () https://git.kernel.org/stable/c/d04cc16d3624218a5458b2b664ae431f1b3b334d - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
30 Apr 2026, 17:11
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-30 11:16
Updated : 2026-05-06 20:05
NVD link : CVE-2026-31692
Mitre link : CVE-2026-31692
CVE.ORG link : CVE-2026-31692
JSON object : View
Products Affected
linux
- linux_kernel
CWE