{"id":"CVE-2026-53582","aliases":["EUVD-2026-102112","GHSA-xww7-76m6-mh2r"],"status":"published","title":"OPNsense: XPATH Injection can disclose any secret in config.xml","description":"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.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00726,"percentile":0.54411,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-643","CWE-91"],"published":"2026-10-15T15:08:46Z","modified":"2026-10-28T02:30:30Z","exploits":[{"source":"pocgithub","id":"eev4n/CVE-2026-53582","title":"eev4n/CVE-2026-53582","date":"2026-06-16","url":"https://github.com/eev4n/CVE-2026-53582"}],"products":[{"vendor":"opnsense","product":"core"}],"references":[{"url":"https://github.com/opnsense/core/security/advisories/GHSA-xww7-76m6-mh2r","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/opnsense/core/commit/e2cd067343511252fb0d391a17d82d3ecceece45","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/opnsense/core/commit/fc2f0d745c17855d2027b192fd4e3fa913e26859","tags":["x_refsource_MISC","fix"]},{"url":"http://seclists.org/fulldisclosure/2026/Jul/18","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53582.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53582","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-53582","title":"OPNsense: XPATH Injection can disclose any secret in config.xml","description":"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.","status":"published","published":"2026-10-15T15:08:46.374Z","modified":"2026-10-16T17:13:42.903Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-91","CWE-643"],"updated_at":"2026-11-02T14:19:59.761005Z"}],"euvd":[{"id":"EUVD-2026-102112","description":"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.","status":"published","published":"2026-10-15T15:08:46Z","modified":"2026-10-16T17:13:42Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L","level":"high"}],"updated_at":"2026-11-02T17:00:04.331134Z"}],"nvd":[{"id":"CVE-2026-53582","description":"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.","status":"published","published":"2026-10-15T16:18:12.827Z","modified":"2026-10-16T18:17:58.227Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-91","CWE-643"],"updated_at":"2026-11-02T14:12:59.751798Z"}],"osv":[{"id":"CVE-2026-53582","title":"OPNsense: XPATH Injection can disclose any secret in config.xml","description":"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.","status":"published","published":"2026-10-15T15:08:46.374Z","modified":"2026-10-28T02:30:30.127777593Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L","level":"high"}],"cwes":["CWE-643","CWE-91"],"updated_at":"2026-11-02T15:45:08.132336Z"}]}}