captive browser, a dedicated Chrome instance to log into captive portals without messing with DNS settings. In 25.05 and earlier, when programs.captive-browser is enabled, any user of the system can run arbitrary commands with the CAP_NET_RAW capability (binding to privileged ports, spoofing localhost traffic from privileged services…). This vulnerability is fixed in 25.11 and 26.05.
Weakness
The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/104.html
- https://cwe.mitre.org/data/definitions/470.html
- https://cwe.mitre.org/data/definitions/69.html