TI-2026-59923 Aliases CVE-2026-87806 GHSA-g24p-7jpj-4qf8

Parse Server 9.0.0 Authentication Bypass via LDAP Empty Password

MEDIUM 42CWE-287Published 2026-09-09 · Updated 2026-09-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Parse Server versions <= 8.6.87 and >= 9.0.0 < 9.10.1-alpha.7 contain an authentication bypass in the built-in LDAP authentication adapter. The adapter forwarded the client-supplied password to the directory without verifying that a password had been supplied, and treated any non-error response from the directory as proof of authentication. A zero-length credential turns an LDAP simple bind into the unauthenticated authentication mechanism described in RFC 4513 section 5.1.2, which some directories (including Active Directory in its default configuration) answer with success while mapping the connection to anonymous. As a result, an unauthenticated attacker who knows a directory username can obtain a valid session token for that account, resulting in account takeover. Only deployments that enable the LDAP authentication adapter are affected, and deployments whose directory refuses unauthenticated simple bind (such as a stock OpenLDAP configuration) are not exploitable. The issue is fixed in 8.6.88 and 9.10.1-alpha.7, which require the password to be a non-empty string and reject the request before contacting the directory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00511 43rd percentileScored 2026-11-07

Fix Fixed parse-server (parse-community): 9.10.1-alpha.7, 8.6.88

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
parse-community	parse-server	9.0.0 to before 9.10.1-alpha.7	9.10.1-alpha.7	Patch available	CNA
parse-community	parse-server	before 8.6.88	8.6.88	Patch available	CNA

parse-server Vendorparse-community Affected 9.0.0 to before 9.10.1-alpha.7 Fixed in 9.10.1-alpha.7 Patch available CNA
parse-server Vendorparse-community Affected before 8.6.88 Fixed in 8.6.88 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:parseplatform:parse-server::::::::	—	—	parse-community

cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* Versions — — ·parse-community

Remediation

Fix · CNA parse-server (parse-community) Fixed in 9.10.1-alpha.7
Fix · CNA parse-server (parse-community) Fixed in 8.6.88

Timeline

2026-10-02 Threatist record created from CVE-2026-87806
2026-10-03 Alias added: GHSA-g24p-7jpj-4qf8

References

Advisory 1

GitHub Security Advisory (GHSA-863r-39r9-vfcf)

TI-2022-08574 Command Injection in Parse server CVSS 3.1CRITICAL 10.0
TI-2024-18136 Parse Server literalizeRegexPart SQL Injection CVSS 3.1CRITICAL 10.0
TI-2022-18768 Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser CVSS 3.1CRITICAL 9.8
TI-2024-31550 Parse Server's custom object ID allows to acquire role privileges CVSS 3.1HIGH 8.1
TI-2025-35510 parse is a package designed to parse JavaScript SDK. CVSS 3.1MEDIUM 6.5
TI-2024-26265 ZDI-CAN-23894: Parse Server literalizeRegexPart SQL Injection Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8

See all 158 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences