CVE-2026-30863 | THREATINT

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.10 and 9.5.0-alpha.11, the Google, Apple, and Facebook authentication adapters use JWT verification to validate identity tokens. When the adapter's audience configuration option is not set (clientId for Google/Apple, appIds for Facebook), JWT verification silently skips audience claim validation. This allows an attacker to use a validly signed JWT issued for a different application to authenticate as any user on the target Parse Server. This issue has been patched in versions 8.6.10 and 9.5.0-alpha.11.

PUBLISHED Reserved 2026-03-05 | Published 2026-03-07 | Updated 2026-03-07 | Assigner GitHub_M

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-287: Improper Authentication

Product status

< 8.6.10

affected

< 9.5.0-alpha.11

affected

References

github.com/...server/security/advisories/GHSA-x6fw-778m-wr9v

cve.org (CVE-2026-30863)

nvd.nist.gov (CVE-2026-30863)

Download JSON