CVE-2026-33627

Description

### Impact 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. ### Patches The `/users/me` endpoint now queries the session and user data separately, using the caller's authentication context for the user query so that all security layers apply correctly. ### Workarounds There is no known workaround.

How to fix CVE-2026-33627

To remediate CVE-2026-33627, upgrade the affected package to a fixed version below.

• —upgrade to 8.6.61 or later
• —upgrade to 9.6.0-alpha.55 or later

Is CVE-2026-33627 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 8.6.61, >= 9.0.0, < 9.6.0
• >= 9.0.0, < 9.6.0-alpha.55

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-33627
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/commit/5b8998e6866bcf75be7b5bb625e27d23bfaf912c
• WEBgithub.com/parse-community/parse-server/commit/875cf10ac979bd60f70e7a0c534e2bc194d6982f