CRITICALVulnerability

CVE-2026-72603

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.

Properties

severity
CRITICAL
score
9.9
cve_id
CVE-2026-72603
vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
published_at
2026-08-11T12:17:43.383
last_modified
2026-08-28T18:51:39.823

Related Entities (2)

DESCRIBED_BY (1)

[Source]NVD

HAS_WEAKNESS (1)

[Weakness]Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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CVE-2026-72603 — Ninja Signal Threat Intelligence | Ninja Signal