CVE-2026-32242 Parse Server OAuth2 adapter shares mutable state across providers via singleton instance
Concurrent OAuth2 requests may share mutable state, allowing tokens to be validated against incorrect provider policies, bypassing authentication checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32242?
CVE-2026-32242 is a critical vulnerability in Parseplatform Parse-Server, published on 12 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.11 and 8.6.37, Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all OAuth2 provider configurations. Under concurrent authentication requests for different OAuth2 providers, one provider's token validation may execute using another provider's configuration, potentially allowing a token that should be rejected by one provider to be accepted because it is validated against a different provider's policy. Deployments that configure multiple OAuth2 providers via the oauth2: true flag are affected. This vulnerability is fixed in 9.6.0-alpha.11 and 8.6.37.
Weakness: CWE-362
Which versions are affected by CVE-2026-32242?
5 open source packages ship an affected version, including parse-server and parse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
parse-server npm | All versions | 8.6.37 |
parse-server npm | All versions | 8.6.37 |
parse-server npm | From 9.0.0 | 9.6.0-alpha.11 |
parse-server npm | From 9.0.0 | 9.6.0-alpha.11 |
parse Bitnami | All versions | 8.6.37, 9.6.0 |
Products include Parseplatform Parse-Server.
How do I fix CVE-2026-32242?
Upgrade parse-server to a fixed version for your release line: 8.6.37 or 9.6.0-alpha.11.
Is CVE-2026-32242 being exploited?
There is no known exploitation of CVE-2026-32242 in the wild and no public exploit code.
Other vulnerabilities in Parseplatform Parse-Server
- CVE-2026-30966 Parse Server role escalation and CLP bypass via direct `_Join` table write
- CVE-2024-27298 Parse Server literalizeRegexPart SQL Injection
- CVE-2022-24760 Command Injection in Parse server
- CVE-2026-30965 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter
- CVE-2023-36475 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Sources
Also known as BIT-parse-2026-32242, GHSA-2cjm-2gwv-m892.