CVE-2026-34215
HIGH
GHSA-wp76-gg32-8258
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3Description
### Impact The verify password endpoint returns unsanitized authentication data, including MFA TOTP secrets, recovery codes, and OAuth access tokens. An attacker who knows a user's password can extract the MFA secret to generate valid MFA codes, defeating multi-factor authentication protection. ### Patches The verify password endpoint now sanitizes authentication data through auth adapter hooks before returning the response, consistent with login and user retrieval endpoints. ### Workarounds There is no known workaround.
Analysis
Parse Server's verify password endpoint leaks MFA secrets and OAuth tokens to authenticated users, enabling multi-factor authentication bypass. Attackers who possess a valid user password can extract TOTP secrets and recovery codes from the unsanitized response, then generate valid MFA codes to defeat the second authentication factor. …
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Remediation
Within 24 hours: Identify all Parse Server instances in your environment and determine current versions. Within 7 days: Apply the vendor-released patch to all affected Parse Server deployments and verify MFA endpoint responses no longer contain TOTP secrets or recovery codes. …
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External POC / Exploit Code
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