CVE-2026-53582 OPNsense - XPath Injection

OPNsense < 26.1.10 contains an XPath injection caused by interpolation of attacker-controlled certificate authority and certificate refid values in Trust module, letting users with CA or Certificate Manager privileges recover sensitive config.xml values, exploit requires CA Manager or Certificate Manager privileges.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
View the NVD record ↗

Details

Type
Xpath Injection
Impact
Information Disclosure, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L
Published
15 October 2026
Updated
16 October 2026
Weakness
CWE-91

Vendor fix

Update to version 26.1.10 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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