---
id: CVE-2026-72001
title: >-
  Pangolin before 1.22.0 contains an authentication bypass vulnerability that
  allows unauthenticated attackers to access any protected resource by supplying
  an attacker-controlled URL parameter to the share-link authentication endpoint
  tha…
summary: >-
  Pangolin before 1.22.0 contains an authentication bypass vulnerability that
  allows unauthenticated attackers to access any protected resource by supplying
  an attacker-controlled URL parameter to the share-link authentication endpoint
  tha…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-639
published: '2026-08-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:18:59.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72001'
references:
  - url: 'https://github.com/fosrl/pangolin/releases/tag/1.22.0'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pangolin-authentication-bypass-via-share-link-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00278
epssPercentile: 0.20416
ingestedAt: '2026-09-08T21:11:12.288Z'
---

## Overview

Pangolin before 1.22.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to access any protected resource by supplying an attacker-controlled URL parameter to the share-link authentication endpoint that omits the expected resource identifier from the token verification call. Attackers holding a single valid share link for any resource can authenticate against arbitrary resources across different organizations, bypassing all configured authentication methods including SSO, resource passwords, PIN codes, email allowlists, and header authentication.

## Remediation

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