{"id":"CVE-2026-53582","summary":"OPNsense: XPATH Injection can disclose any secret in config.xml","details":"OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.10, the Trust module stores attacker-controlled certificate authority and certificate refid values and interpolates them into XPath expressions in src/opnsense/mvc/app/models/OPNsense/Trust/FieldTypes/CAsField.php and src/opnsense/mvc/app/models/OPNsense/Trust/FieldTypes/CertificatesField.php. A user with CA Manager or Certificate Manager privileges can submit a crafted refid and repeatedly retrieve the object to obtain a boolean refcount oracle, allowing values in config.xml to be recovered character by character. Exposed values can include password hashes, API credentials, certificate private keys, VPN key material, and high-availability credentials, enabling privilege escalation and compromise of other security domains. This issue is fixed in version 26.1.10.","aliases":["GHSA-xww7-76m6-mh2r"],"modified":"2026-10-16T02:48:01.323002595Z","published":"2026-10-15T15:08:46.374Z","database_specific":{"cwe_ids":["CWE-643","CWE-91"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53582.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"http://seclists.org/fulldisclosure/2026/Jul/18"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53582.json"},{"type":"FIX","url":"https://github.com/opnsense/core/commit/e2cd067343511252fb0d391a17d82d3ecceece45"},{"type":"FIX","url":"https://github.com/opnsense/core/commit/fc2f0d745c17855d2027b192fd4e3fa913e26859"},{"type":"ADVISORY","url":"https://github.com/opnsense/core/security/advisories/GHSA-xww7-76m6-mh2r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53582"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opnsense/core","events":[{"introduced":"0"},{"fixed":"fb4ee60c344275f244b63b384e4a2a11a2afcf18"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"26.1.10"}]}}],"versions":["26.1.9","26.1.8","26.1.6","26.1.7","26.1.5","26.1.4","26.1.3","26.1.2","26.1.1","26.1","26.1.r2","26.1.r1","26.1.r","26.1.b","26.1.a","25.7.r","25.7.b","25.7.a","25.1.r","25.1.b","25.1.a","24.7.r","24.7.b","24.7.a","24.1.r","24.1.b","24.1.a","23.7.r","23.7.b","23.7.a","23.1.r","23.1.b","23.1.a","22.7.r","22.7.b","22.7.a","22.1.r","22.1.b","22.1.a","21.7.r","21.7.b","21.7.a","21.1.r","21.1.b","21.1.a","20.7.r","20.7.b","20.7.a","20.1.r","20.1.b","20.1.a","19.7.r","19.7.b","19.7.a","19.1.r","19.1.b","19.1.a","18.7.r","18.7.b","18.7.a","18.1.r","18.1.b","18.1.a","17.7.r","17.7.b","17.7.a","17.1.r","17.1.b","17.1.a","16.7.r","16.7.b","16.7.a","15.7","15.1.12","15.1.11.4","15.1.11.3","15.1.11.2","15.1.11.1","15.1.11","15.1.10.2","15.1.10","15.1.9.2","15.1.9.1","15.1.9","15.1.8.4","15.1.8.3","15.1.8.2","15.1.8.1","15.1.8","15.1.7.2","15.1.7.1","15.1.7","15.1.6.1","15.1.6","15.1.5","15.1.4","15.1.3","15.1.2","15.1.1","15.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53582.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L"}]}