CVE-2026-34215: Parse Server: Auth data exposed via verify password endpoint
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.
Other sources
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.63 and 9.7.0-alpha.7, 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. This issue has been patched in versions 8.6.63 and 9.7.0-alpha.7.
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
npm/parse-serverto a version that resolves this vulnerability.Fixed in 8.6.63 - Upgrade
Upgrade
npm/parse-serverto a version that resolves this vulnerability.Fixed in 9.7.0-alpha.7 - Upgrade
Upgrade
Parse Serverto a version that resolves this vulnerability.Fixed in 8.6.63 - Upgrade
Upgrade
Parse Serverto a version that resolves this vulnerability.Fixed in 9.7.0-alpha.7
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34215?
CVE-2026-34215 is classified as a high severity vulnerability due to the exposure of sensitive authentication data.
How do I fix CVE-2026-34215?
To fix CVE-2026-34215, upgrade to parse-server version 8.6.63 or 9.7.0-alpha.7 or later.
What data is leaked in CVE-2026-34215?
CVE-2026-34215 leaks sensitive data including MFA TOTP secrets, recovery codes, and OAuth access tokens.
Who is affected by CVE-2026-34215?
Users of the parse-server versions prior to 8.6.63 and between 9.0.0 and 9.7.0-alpha.7 are affected by CVE-2026-34215.
What can an attacker do with CVE-2026-34215?
An attacker who knows a user's password can exploit CVE-2026-34215 to extract MFA secrets and bypass multi-factor authentication.