CVE-2026-33627 Parse Server: Auth data exposed via /users/me endpoint
Authenticated users can retrieve unsanitized MFA secrets via the /users/me endpoint, enabling indefinite account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-33627?
CVE-2026-33627 is a high-severity vulnerability in Parseplatform Parse-Server, published on 24 Mar 2026. Any signed-in user can exploit it over the network, 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 versions 8.6.61 and 9.6.0-alpha.55, an authenticated user calling GET /users/me receives unsanitized auth data, including sensitive credentials such as MFA TOTP secrets and recovery codes. The endpoint internally uses master-level authentication for the session query, and the master context leaks through to the user data, bypassing auth adapter sanitization. An attacker who obtains a user's session token can extract MFA secrets to generate valid TOTP codes indefinitely. This issue has been patched in versions 8.6.61 and 9.6.0-alpha.55.
Weakness: CWE-200
Which versions are affected by CVE-2026-33627?
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 | 8.6.61 |
parse-server npm | All versions | 8.6.61 |
parse-server npm | From 9.0.0 | 9.6.0-alpha.55 |
parse-server npm | From 9.0.0 | 9.6.0-alpha.55 |
parse Bitnami | All versions | 8.6.61, 9.6.0 |
Products include Parseplatform Parse-Server.
How do I fix CVE-2026-33627?
Upgrade parse-server to a fixed version for your release line: 8.6.61 or 9.6.0-alpha.55.
Is CVE-2026-33627 being exploited?
There is no known exploitation of CVE-2026-33627 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-2026-33627, GHSA-37mj-c2wf-cx96.