---
id: "CVE-2026-111667"
kind: "vulnerability"
aliases: ["CVE-2026-111667"]
title: "REBUILD: low-privileged users can read private project task comments"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "project-management", "rebuild", "self-hosted"]
not_affected_if: ["no-private-projects", "single-user-instance"]
published_at: "2026-10-16T18:17:48+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T04:27:07+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111667", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# REBUILD: low-privileged users can read private project task comments

REBUILD through 4.5.0 has a missing authorization check in the task comment listing endpoint. An authenticated low-privileged user can request comments and attachment references for tasks in private projects they do not belong to.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed REBUILD version against `4.5.0`; versions through 4.5.0 are affected.
- Review whether `/project/comments/list` is reachable by ordinary authenticated users.

## Fix

- unknown

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111667

## From the sources

REBUILD through 4.5.0 contains a missing authorization vulnerability in TaskCommentController.commentList that allows authenticated low-privileged users to read task comments without project membership checks. Attackers can supply the id of a task in a private project to the /project/comments/list endpoint to retrieve its comment content and attachment references.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_