Improper control of interaction frequency in Parse Server - CVE-2026-30972
Published: April 6, 2026
Vulnerability identifier: #VU124988
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-30972
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass configured rate limits.
The vulnerability exists due to improper control of interaction frequency in the batch request endpoint when processing batch requests containing multiple sub-requests for rate-limited paths. A remote attacker can send a specially crafted batch request to bypass configured rate limits.
Any deployment that relies on the built-in rate limiting feature is affected.
Affected software
Parse Server
How to mitigate CVE-2026-30972
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.23, 9.5.2 alpha.10