Threats Tagged 'cve-2026-25740'
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Threats Tagged 'cve-2026-25740'
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CVE-2026-25740 is a medium-severity vulnerability in NixOS nixpkgs versions 25.05 and earlier, involving the captive-browser feature. This feature runs a dedicated Chrome instance to handle captive portal logins without altering DNS settings. When enabled, any local user can execute arbitrary commands with the CAP_NET_RAW capability, allowing actions such as binding to privileged ports and spoofing localhost traffic from privileged services. The vulnerability arises from execution with unnecessary privileges (CWE-250). It requires local access and partial privileges but no user interaction. The issue is fixed in versions 25.11 and 26.05. Although no known exploits are reported in the wild, the potential for privilege escalation and network spoofing poses risks, especially in multi-user environments. Join the discussion | CVE Database V5 | 02/09/2026, 20:17:16 UTC Added: 02/09/2026, 20:31:16 UTC |
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