CVE-2026-87806Network attack vector

Account takeover via empty LDAP password

Published Sep 9, 2026 · Updated Sep 9, 2026

Authentication bypass in Parse Server before 8.6.88 and 9.0.0 through 9.10.1-alpha.6 allows remote attackers to take over LDAP accounts. The built-in LDAP adapter forwards an empty client password into a simple bind and treats the directory's anonymous-success response as authenticated. Exploitation requires the LDAP adapter, a known directory username, and a directory that accepts unauthenticated simple binds; success issues a session token for that account.

CVSS severity9.1
Critical
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Parse Server before 8.6.88 and 9.0.0 through 9.10.1-alpha.6 allows remote attackers to take over LDAP accounts. The built-in LDAP adapter forwards an empty client password into a simple bind and treats the directory's anonymous-success response as authenticated. Exploitation requires the LDAP adapter, a known directory username, and a directory that accepts unauthenticated simple binds; success issues a session token for that account.

The record

CVE
CVE-2026-87806
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-287, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <8.6.88
  2. Affected versionversion=9.0.0 <9.10.1-alpha.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=0 <8.6.88; version=9.0.0 <9.10.1-alpha.7

Published CVSS scores

7.4VulnCheck CNACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
9.1VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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