Authentication Bypass in Parse Server by Parse Community
CVE-2026-87806

9.1CRITICAL

Key Information:

Vendor

Parse-community

Status
Parse-server
Vendor
CVE Published:
9 September 2026

What is CVE-2026-87806?

An authentication bypass vulnerability exists in Parse Server versions up to 8.6.87 and between 9.0.0 and 9.10.1-alpha.7 due to improper handling of client-supplied passwords in the LDAP authentication adapter. This vulnerability allows unauthenticated attackers to obtain valid session tokens by exploiting the system's treatment of non-empty and empty credentials. If the LDAP directory configured accepts anonymous binds (a common setting in environments like Active Directory), attackers can leverage this flaw to gain unauthorized access. The risk is mitigated in versions 8.6.88 and 9.10.1-alpha.7, which require valid non-empty passwords before authenticating with the directory.

Affected Version(s)

parse-server 9.0.0 < 9.10.1-alpha.7

parse-server 0 < 8.6.88

parse-server 9.10.1-alpha.7

References

https://github.com/parse-community/parse-server/security/...
vendor-advisory
https://www.vulncheck.com/advisories/parse-server-9.0.0-a...
third-party-advisory

CVSS V4

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Guigu98
mtrezza
.