Dashboard / CVE-2026-43930

CVE-2026-43930

LOW
INFO Priority: 0.01 BB Relevance: 49/100
Published: 2026-05-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: None
S: X
AT: None
VC: None
VI: Low
VA: None

Description

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
parseplatform parse-server < 8.6.76
parseplatform parse-server 9.9.0

References & Advisories (3)

Bug Bounty Relevance

49 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

2.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/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

EPSS — Exploitation Probability

0.24%
Raw Score 0.002360
Percentile 14.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00236
2026-10-28
0.00236

Intelligence Sources

nvd ref →

External Links