# CVE-2026-72001: Pangolin < 1.22.0 Authentication Bypass via Share-Link Endpoint

Status: published. Published: 2026-08-31. Updated: 2026-11-08.

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

No remediation reported in collected sources

## Affected products and versions

- Pangolin / Pangolin (fosrl/pangolin): ≥ 0; < 1.22.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.6 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.49% as of 2026-11-08; percentile 42.43%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/fosrl/pangolin/releases/tag/1.22.0 (CNA: VulnCheck; release-notes)

- https://www.vulncheck.com/advisories/pangolin-authentication-bypass-via-share-link-endpoint (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-72001; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-72001; retrieved 2026-11-08; source updated Not reported

Revision: fa7ef7e6c621c1d2c9f1e818284f5b7c0639b152c7b92bfaf9cb396cf6cebfe9

Canonical: https://y2.dev/cve/CVE-2026-72001

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