{"id":"CVE-2026-71490","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-71490","generatedAt":"2026-10-28T00:18:43.866Z","title":"OPNsense is a FreeBSD based firewall and routing platform.","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.","published":"2026-10-15T16:18:20.000Z","lastModified":"2026-10-15T21:08:50.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"},"cwe":["CWE-863"],"affected":[],"epss":{"score":0.0038,"percentile":0.3178,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.0038,"percentile":0.30441}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T16:18:20.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-10-15T16:18:19.723Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://github.com/opnsense/core/commit/578e025111161ffd03fd3fd0ccdac203be546505","source":"security-advisories@github.com"},{"url":"https://github.com/opnsense/core/commit/e15a884973746319e79bd2cd421e8a015cc3ddb9","source":"security-advisories@github.com"},{"url":"https://github.com/opnsense/core/commit/f674f4ff294a3f7c4cd0591563f6df47bea50034","source":"security-advisories@github.com"},{"url":"https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw","source":"security-advisories@github.com"},{"url":"https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71490","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}