---
id: CVE-2020-37094
title: >-
  EspoCRM 5.7.0 prior to 5.9.0 contains an authentication token reuse
  vulnerability that allows authenticated attackers to bypass two-factor
  authentication by exploiting token-to-password-hash mapping in
  application/Espo/Core/Utils/Authent…
summary: >-
  EspoCRM 5.7.0 prior to 5.9.0 contains an authentication token reuse
  vulnerability that allows authenticated attackers to bypass two-factor
  authentication by exploiting token-to-password-hash mapping in
  application/Espo/Core/Utils/Authent…
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-303
vendor: espocrm
product: espocrm
affected:
  - espocrm <= 5.8.5
published: '2026-02-03'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-37094'
references:
  - url: >-
      https://github.com/espocrm/espocrm/commit/b299220dd0c7acdaa1ed8be8ffd79c7985093c7a
    label: disclosure@vulncheck.com
  - url: 'https://www.espocrm.com'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/48376'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/espocrm-two-factor-auth-bypass-via-auth-token-reuse-between-accounts-with-identical-passwords
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00482
epssPercentile: 0.38904
ingestedAt: '2026-07-10T16:05:09.745Z'
---

## Overview

EspoCRM 5.7.0 prior to 5.9.0 contains an authentication token reuse vulnerability that allows authenticated attackers to bypass two-factor authentication by exploiting token-to-password-hash mapping in application/Espo/Core/Utils/Authentication/Espo.php. Attackers can obtain an authentication token for a controlled account and replay it against any victim account sharing the same password, since tokens are bound to password hashes rather than unique per-user values, bypassing the victim's 2FA protections.

## Affected

- `espocrm <= 5.8.5`

## Remediation

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