Information Exposure Through an Error Message in Parse Server - CVE-2026-64627
Published: September 15, 2026
Vulnerability identifier: #VU149927
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-64627
CWE-ID: CWE-209
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose schema identifiers.
The vulnerability exists due to generation of error messages containing sensitive information in the GraphQL error response pipeline when processing variable-coercion errors. A remote attacker can submit queries or mutations containing near-miss enum values or input-object field names to disclose schema identifiers.
The issue affects deployments where public GraphQL introspection is disabled.
Affected software
Parse Server
How to mitigate CVE-2026-64627
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.85, 9.10.0 alpha.4