---
id: CVE-2026-55882
title: 'Tilt: Unauthenticated pprof debug endpoints on the Tilt HUD server'
summary: 'Tilt: Unauthenticated pprof debug endpoints on the Tilt HUD server'
severity: high
cwe:
  - CWE-200
vendor: tilt-dev
product: github.com/tilt-dev/tilt
affected:
  - 'github.com/tilt-dev/tilt >= 0.19.5, <= 0.37.3'
patched:
  - github.com/tilt-dev/tilt 0.37.4
published: '2026-06-19'
updated: '2026-06-19'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-p749-9w62-w533'
references:
  - url: 'https://github.com/tilt-dev/tilt/security/advisories/GHSA-p749-9w62-w533'
  - url: 'https://github.com/tilt-dev/tilt/pull/6776'
  - url: 'https://github.com/tilt-dev/tilt/releases/tag/v0.37.4'
  - url: 'https://github.com/advisories/GHSA-p749-9w62-w533'
tags:
  - ghsa
  - go
ingestedAt: '2026-06-22T15:59:08.206Z'
ecosystem: go
epss: 0.00524
epssPercentile: 0.4192
---

## Overview

## Summary
The Tilt HUD server mounts Go's `net/http/pprof` handlers under `/debug` with no access control. When the HUD is network-exposed, an attacker can read process memory — including session and apiserver tokens — and hold the process under profiling.

## Details
A blank import of `net/http/pprof` registers its handlers on `http.DefaultServeMux`, which the HUD controller mounts under `/debug` on both the web router and the apiserver listener. `/debug/pprof/heap` and `/goroutine` expose process memory, including the session token (also issued in the `Tilt-Token` cookie) and the apiserver loopback bearer token; `/profile` and `/trace` let a caller sample the process for an arbitrary duration.

## Impact
An unauthenticated caller who can reach the listener can extract process memory — including the session and apiserver tokens — and degrade performance by holding the process under CPU profiling or tracing. The leaked tokens compound the missing-authentication finding on the same server.

### Conditions for exploitation
- Affected version in `>= 0.19.5, <= 0.37.3`.
- HUD (or apiserver) listener bound to a non-loopback address (`tilt up --host 0.0.0.0`, or `TILT_HOST` set).
- Network reachability to the listener (default port `10350`).

### Not affected
- The default loopback-only bind is not reachable from the network.

## Workarounds
Use the default loopback bind (omit `--host`, unset `TILT_HOST`) so `/debug` is not remotely reachable. No complete workaround short of upgrading for non-loopback deployments.

## Affected packages

- `github.com/tilt-dev/tilt >= 0.19.5, <= 0.37.3`

## Remediation

Upgrade to a patched release:

- `github.com/tilt-dev/tilt 0.37.4`