Auth bypass in Pangolin
CVE-2026-72001
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Release Notes (release-notes)
- www.vulncheck.com/advisories/pangolin-authentication-bypass-via-share-link-endp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72001?
- CVE-2026-72001 is a high-severity vulnerability in Pangolin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-08-31.
- How severe is CVE-2026-72001?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2026-72001 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.