Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldap_escape(). An unauthenticated attacker can inject LDAP filter metacharacters into the username field of the WebGUI login page to enumerate valid LDAP usernames in the configured directory. When the LDAP server configuration includes an Extended Query to restrict login to members of a specific group, the same injection can be used to bypass that group membership restriction and authenticate as any LDAP user whose password is known, regardless of group membership. This vulnerability is fixed in 26.1.6.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-34578 LDAP Injection in OPNsense WebGUI Authentication Prior to 26.1.6 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-34578
Post summary
CVE-2026-34578 alerts of an LDAP Injection flaw in OPNsense WebGUI’s authentication before 26.1.6, but no exploitation evidence, PoC, or patch information is provided.
CVE-2026-34578 OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP s… https://www.cve.org/CVERecord?id=CVE-2026-34578
Post summary
CVE-2026-34578 describes an LDAP injection vulnerability in OPNsense <=26.1.6, but no PoC, exploit code, patches, or active exploitation reports are provided.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | opnsense | opnsense | - | - | - |