---
title: "CVE-2026-87806: Parse Server - Authentication Bypass"
description: "Parse Server <= 8.6.87 and >= 9.0.0 < 9.10.1-alpha.7 contain an authentication bypass caused by improper handling of zero-length passwords in the LDAP authentication adapter, letting unauthenticated attackers obtain valid session tokens, exploit requires LDAP authentication adapter enabled and directory allowing unauthenticated simple bind."
url: https://panop.io/threat-heartbeat/CVE-2026-87806/
---

# CVE-2026-87806 Parse Server - Authentication Bypass

Parse Server <= 8.6.87 and >= 9.0.0 < 9.10.1-alpha.7 contain an authentication bypass caused by improper handling of zero-length passwords in the LDAP authentication adapter, letting unauthenticated attackers obtain valid session tokens, exploit requires LDAP authentication adapter enabled and directory allowing unauthenticated simple bind.

CVSS base score 7.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.51% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87806)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-287](https://cwe.mitre.org/data/definitions/287.html)

## Vendor fix

Upgrade to versions 8.6.88 or 9.10.1-alpha.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-87806](https://nvd.nist.gov/vuln/detail/CVE-2026-87806)
- [https://github.com/parse-community/parse-server/security/advisories/GHSA-863r-39r9-vfcf](https://github.com/parse-community/parse-server/security/advisories/GHSA-863r-39r9-vfcf)
- [https://www.vulncheck.com/advisories/parse-server-9.0.0-authentication-bypass-via-ldap-empty-password](https://www.vulncheck.com/advisories/parse-server-9.0.0-authentication-bypass-via-ldap-empty-password)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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