CVE-2026-25740
Privilege escalation to the `CAP_NET_RAW` capability via the `programs.captive-browser` NixOS module
Description
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.
No summary for this CVE yet.
Weaknesses
Affected Products
NixOS
oss-project
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Privilege Escalation
References
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