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Vulnerabilities CVE-2026-55884

CVE-2026-55884

Critical
Open
TLP:CLEAR

Tilt: Missing authentication on the network-exposed Tilt HUD server

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Description

Tilt defines dev environments as code for microservice apps on Kubernetes. From 0.20.8 through 0.37.3, the Tilt HUD HTTP server registers handlers on a gorilla/mux router with no authenticating middleware. When the HUD is bound to a non-loopback address, an unauthenticated network caller can trigger developer-defined resources, tamper with Tiltfile arguments, read full engine state including the session token, and invoke apiserver resources through the token-attaching /proxy handler. This issue is fixed in version 0.37.4.

Details

CVSS Score
9.2
EPSS Score
0.40%

32.8th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 10, 2026
Last Modified
Jul 13, 2026
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