Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
CVE Vulnerability Details :
CVE-2026-25740
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-09 Feb, 2026 | 20:17
Updated At-10 Feb, 2026 | 15:59
Rejected At-
▼CVE Numbering Authority (CNA)
Privilege escalation to the `CAP_NET_RAW` capability via the `programs.captive-browser` NixOS module

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
Vendor
NixOS
Product
nixpkgs
Versions
Affected
  • <= 25.05
Problem Types
TypeCWE IDDescription
CWECWE-250CWE-250: Execution with Unnecessary Privileges
Type: CWE
CWE ID: CWE-250
Description: CWE-250: Execution with Unnecessary Privileges
Metrics
VersionBase scoreBase severityVector
4.05.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/NixOS/nixpkgs/security/advisories/GHSA-wc3r-c66x-8xmc
x_refsource_CONFIRM
https://github.com/NixOS/nixpkgs/pull/487775
x_refsource_MISC
https://github.com/NixOS/nixpkgs/pull/487779
x_refsource_MISC
Hyperlink: https://github.com/NixOS/nixpkgs/security/advisories/GHSA-wc3r-c66x-8xmc
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/NixOS/nixpkgs/pull/487775
Resource:
x_refsource_MISC
Hyperlink: https://github.com/NixOS/nixpkgs/pull/487779
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found