CVE-2026-43930
LOW
2,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: high
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password (OTP) login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive valid session tokens, breaking the single-use property of the OTP. The vulnerability requires the attacker to already possess the victim's password and intercept the active SMS OTP (e.g. via SIM swap, network mirror, or phishing relay) and to race the legitimate login request, so the practical attack surface is narrow. This vulnerability is fixed in 8.6.76 and 9.9.0-alpha.2.
362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
DraftCommon Consequences
Security Scopes Affected:
Availability
Confidentiality
Integrity
Access Control
Potential Impacts:
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Dos: Resource Consumption (Other)
Dos: Crash, Exit, Or Restart
Dos: Instability
Read Files Or Directories
Read Application Data
Execute Unauthorized Code Or Commands
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Applicable Platforms
Languages:
C, C++, Java
Technologies:
ICS/OT, Mobile
https://github.com/parse-community/parse-server/pull/10448
https://github.com/parse-community/parse-server/pull/10449
https://github.com/parse-community/parse-server/security/advisories/GHSA-jpq4-7…