CVE-2026-71490
highOPNsense is a FreeBSD based firewall and routing platform.
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.11, OPNsense\Core\ACL::hasPrivilege() appends a directly assigned comma-separated 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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/opnsense/core/commit/578e025111161ffd03fd3fd0ccdac203be546505 security-advisories@github.com
- https://github.com/opnsense/core/commit/e15a884973746319e79bd2cd421e8a015cc3ddb9 security-advisories@github.com
- https://github.com/opnsense/core/commit/f674f4ff294a3f7c4cd0591563f6df47bea50034 security-advisories@github.com
- https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw security-advisories@github.com
- https://github.com/opnsense/core/security/advisories/GHSA-p9pr-782r-w2xw 134c704f-9b21-4f2e-91b3-4a467353bcc0