PT-2026-27486 · Unknown · Parse Server

Mtrezza · Published 2026-03-24 · Updated 2026-03-27 · CVE-2026-33627

Positive Technologies (AI Summary)

CVSS v4.0

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.61 Parse Server versions prior to 9.6.0-alpha.55

Description Parse Server is an open source backend deployable on Node.js infrastructures. An authenticated user calling the GET /users/me API endpoint receives unsanitized authentication data, which includes sensitive credentials like MFA TOTP secrets and recovery codes. The endpoint utilizes master-level authentication for session queries, and this master context leaks into user data, circumventing auth adapter sanitization. An attacker with a user's session token can extract MFA secrets and generate valid TOTP codes indefinitely.

Recommendations Update to Parse Server version 8.6.61 or later. Update to Parse Server version 9.6.0-alpha.55 or later.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BIT-PARSE-2026-33627

CVE-2026-33627

GHSA-37MJ-C2WF-CX96

Affected Products

Parse Server

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33627.json · Exploit
• https://github.com/parse-community/parse-server/security/advisories/GHSA-37mj-c2wf-cx96 · Vendor Advisory
• https://github.com/parse-community/parse-server/commit/5b8998e6866bcf75be7b5bb625e27d23bfaf912c · Patch
• https://github.com/parse-community/parse-server/commit/875cf10ac979bd60f70e7a0c534e2bc194d6982f · Patch
• https://osv.dev/vulnerability/GHSA-37mj-c2wf-cx96 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33627 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-parse-2026-33627 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33627 · Security Note
• https://github.com/parse-community/parse-server · Note
• https://github.com/parse-community/parse-server/pull/10278 · Note
• https://github.com/parse-community/parse-server/pull/10279 · Note
• https://reddit.com/r/VulnMatter/comments/1s39maw/resumen_diario_de_vulnerabilidades_25032026 · Reddit Post
• https://twitter.com/cyberbivash/status/2036545822939029859 · Twitter Post