{"cve":"CVE-2026-71490","nvd":{"published":"2026-10-15T16:18:19.723","modified":"2026-10-15T21:08:49.703","status":"Deferred","description":"OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.11, OPNsense\\Core\\ACL::hasPrivilege() appends a directly assigned comma-separated <priv> value as one string and then uses an exact comparison when checking user-config-readonly. A user directly assigned both a component write privilege and user-config-readonly can therefore be treated as lacking the read-only restriction, and MVC APIs protected by throwReadOnly() can persist configuration changes for that component. Group privileges are not affected by the same parser flaw because the group path already splits comma-separated values. This issue is fixed in version 26.1.11.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","score":7.1},"cwes":["CWE-863"],"references":["https://github.com/opnsense/core/commit/578e025111161ffd03fd3fd0ccdac203be546505","https://github.com/opnsense/core/commit/e15a884973746319e79bd2cd421e8a015cc3ddb9","https://github.com/opnsense/core/commit/f674f4ff294a3f7c4cd0591563f6df47bea50034","https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw","https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-71490","score":0.0038,"percentile":0.31747,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}