CVE-2026-25740

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/NixOS/nixpkgs/pull/487775
https://github.com/NixOS/nixpkgs/pull/487779
https://github.com/NixOS/nixpkgs/security/advisories/GHSA-wc3r-c66x-8xmc

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) navegador cautivo, una instancia dedicada de Chrome para iniciar sesión en portales cautivos sin alterar la configuración de DNS. En 25.05 y anteriores, cuando programs.captive-browser está habilitado, cualquier usuario del sistema puede ejecutar comandos arbitrarios con la capacidad CAP_NET_RAW (enlazando a puertos privilegiados, suplantando tráfico de localhost desde servicios privilegiados...). Esta vulnerabilidad está corregida en 25.11 y 26.05.

09 Feb 2026, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-09 21:15

Updated : 2026-04-15 00:35

NVD link : CVE-2026-25740

Mitre link : CVE-2026-25740

CVE.ORG link : CVE-2026-25740

JSON object : View

Products Affected

No product.

CWE

CWE-250

Execution with Unnecessary Privileges

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