CVE-2026-123025 An OS Command Injection vulnerability was discovered in the Google Cloud DNS validation module of the OPNsense os-acme-client plugin through 4.17.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-123025?
CVE-2026-123025 is a critical vulnerability in OPNsense os-acme-client, published on 5 Nov 2026.
Official description
An OS Command Injection vulnerability was discovered in the Google Cloud DNS validation module of the OPNsense os-acme-client plugin through 4.17. The DnsGcloud::prepare() method decodes the dns_gcloud_key model field and directly interpolates the string fields gcloud_account and gcloud_project into a shell command passed to proc_open() via LeUtils::run_shell_command() without any validation or escaping. A remote authenticated user with privileges to issue or renew certificates through the WebGUI/API can achieve arbitrary code execution as root.
Weakness: CWE-78
Which versions are affected by CVE-2026-123025?
How do I fix CVE-2026-123025?
No fix has been published for CVE-2026-123025 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-123025 being exploited?
There is no known exploitation of CVE-2026-123025 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-g9hg-38vq-jvh9.