---
id: CVE-2026-111350
title: Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API
summary: >-
  Papermark through 0.22.0 contains a missing authorization vulnerability in the
  data room viewer group API that allows authenticated users to delete other
  teams' viewer groups and share links. Attackers who know a victim team's data
  room …
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-862
vendor: papermark
product: Papermark
affected:
  - Papermark <= 0.22.0
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T21:43:40.792Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111350'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/papermark-dataroom-group-delete-missing-authz
  - url: >-
      https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/index.ts#L155-L190
  - url: >-
      https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/links.ts#L52-L56
  - url: >-
      https://github.com/papermark/papermark/commit/b81cf62f390cda112f35538eb09e54b5f728b74a
  - url: >-
      https://github.com/papermark/papermark/commit/7fa52b23944823a9e74402fca8e48d644239bc0b
  - url: 'https://github.com/papermark/papermark'
  - url: >-
      https://www.vulncheck.com/advisories/papermark-through-0.22.0-missing-authorization-in-data-room-viewer-group-api
    label: >-
      VulnCheck Advisory: Papermark through 0.22.0 Missing Authorization in Data
      Room Viewer Group API
tags:
  - cve.org
ingestedAt: '2026-10-15T22:48:25.455Z'
---

## Overview

Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams' viewer groups and share links. Attackers who know a victim team's data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams.

## Affected

- `Papermark <= 0.22.0`

## Remediation

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