CVE-2026-55883 (GCVE-0-2026-55883)

Vulnerability from cvelistv5 – Published: 2026-07-10 21:38 – Updated: 2026-07-14 14:14
VLAI
Title
Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream
Summary
Tilt defines dev environments as code for microservice apps on Kubernetes. From 0.24.0 through 0.37.3, the Tilt HUD WebSocket at /ws/view is gated by a CSRF token, but the token is served by the unauthenticated /api/websocket_token endpoint and the upgrader accepts clients that omit an Origin header. When the HUD is network-exposed, an attacker who can reach the listener can open the HUD WebSocket and receive the full view stream, including session state, Tiltfile contents, resource statuses, and continued updates. This issue is fixed in version 0.37.4.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 14:14 UTC
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8062 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
tilt-dev tilt Affected: >= 0.24.0, < 0.37.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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