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Advisory record · GHSA-6m68-r693-78qx

Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream

CVSS 8.3 HighEPSS 0.0026 · 18th percentile

Published by the GitHub Advisory Database at 19 Jun 2026, 13:53 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/tilt-dev/tiltGo>=0.24.0, <0.37.40.37.4
Identifiers
GHSA-6m68-r693-78qx · CVE-2026-55883 · GO-2026-5181
Weakness (CWE)
CWE-345
Tags
Published
19 Jun 2026
Updated
21 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Go package github.com/tilt-dev/tilt, versions 0.24.0 up to 0.37.3, is affected. When the Tilt HUD is bound to a non-loopback address, an unauthenticated network attacker can fetch the WebSocket CSRF token and open the HUD stream, then read session state, Tiltfile contents and resource status updates. Upgrade to 0.37.4; keeping the default loopback bind avoids exposure.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.3 High 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0026, the 18th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.