CVE-2026-44194

Description

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input validation by formatting their malicious payload as a compliant email address, allowing shell commands to reach the underlying operating system. The flaw exists in the local user synchronization flow, within core/src/opnsense/scripts/auth/sync_user.php. This vulnerability is fixed in 26.1.8.

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Produits concernés

• opnsense core
• Opnsense opnsense

Scores CVSS

Faiblesses (CWE)

• CWE-78

Références

• https://github.com/opnsense/core/security/advisories/GHSA-f59w-m967-9rf6 ExploitMitigationVendor Advisory
• https://github.com/opnsense/core/security/advisories/GHSA-f59w-m967-9rf6 ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories