---
title: "OPNsense - XPath Injection"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-53582/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-53582)

## 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](https://cwe.mitre.org/data/definitions/91.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-53582](https://nvd.nist.gov/vuln/detail/CVE-2026-53582)
- [https://github.com/opnsense/core/security/advisories/GHSA-xww7-76m6-mh2r](https://github.com/opnsense/core/security/advisories/GHSA-xww7-76m6-mh2r)
- [http://seclists.org/fulldisclosure/2026/Jul/18](http://seclists.org/fulldisclosure/2026/Jul/18)
- [https://github.com/opnsense/core/commit/e2cd067343511252fb0d391a17d82d3ecceece45](https://github.com/opnsense/core/commit/e2cd067343511252fb0d391a17d82d3ecceece45)
- [https://github.com/opnsense/core/commit/fc2f0d745c17855d2027b192fd4e3fa913e26859](https://github.com/opnsense/core/commit/fc2f0d745c17855d2027b192fd4e3fa913e26859)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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