---
id: CVE-2026-86111
title: >-
  BookWyrm through 0.9.1 fails to validate user visibility permissions in the
  status edit endpoint, allowing authenticated attackers to read followers-only
  and direct-message reviews by enumerating sequential status IDs
summary: >-
  BookWyrm through 0.9.1 fails to validate user visibility permissions in the
  status edit endpoint, allowing authenticated attackers to read followers-only
  and direct-message reviews by enumerating sequential status IDs. Attackers can
  acce…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: bookwyrm-social
product: bookwyrm
affected:
  - bookwyrm <= 0.9.1
published: '2026-09-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:05:53.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86111'
references:
  - url: 'https://github.com/bookwyrm-social/bookwyrm'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/bookwyrm-social/bookwyrm/blob/v0.9.1/bookwyrm/templates/snippets/create_status/content_field.html
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/bookwyrm-social/bookwyrm/blob/v0.9.1/bookwyrm/views/status.py
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/geo-chen/oss/blob/main/bookwyrm.md#finding-1-authenticated-idor-in-editstatus-exposes-private-review-comment-and-quotation-content
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/bookwyrm-through-0.9.1-insecure-direct-object-reference-in-editstatus-exposes-followers-only-and-direct-statuses
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/geo-chen/oss/blob/main/bookwyrm.md#finding-1-authenticated-idor-in-editstatus-exposes-private-review-comment-and-quotation-content
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T18:07:22.825411Z'
epss: 0.0025
epssPercentile: 0.16721
ingestedAt: '2026-09-06T07:51:55.706Z'
---

## Overview

BookWyrm through 0.9.1 fails to validate user visibility permissions in the status edit endpoint, allowing authenticated attackers to read followers-only and direct-message reviews by enumerating sequential status IDs. Attackers can access the raw content of restricted statuses through the edit view, bypassing the privacy protections documented for these message types.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.