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CVE PROGRAM SOURCE RECORD5.8 Medium

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NixOS nixpkgs

  • <= 25.05affected

References