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Critical 9.9Published Aug 11, 2026

CVE-2026-72603wg-easy wg-easy - OS Command Injection

Updated under an hour ago ()

Does this affect you?

It affects wg-easy. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

An OS command injection vulnerability in wg-easy 15.3.0 allows users with the clients.create permission to execute arbitrary commands as root by injecting newline-delimited WireGuard PostUp directives into the client name field. The client name is written to the WireGuard configuration file without neutralizing newline characters, allowing injection of arbitrary directives that are executed by wg-quick with root privileges. An attacker with clients.create permission achieves root code execution on the host.

CVSS
9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-78
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
TuranSec
NVD analysis
Deferred
Record last updated
Aug 11, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
wg-easy wg-easy
wg_easy:wg_easy (from the name)
through 15.3.0
CNA record

References

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.

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