CVE-2026-30972
published 2026-03-10CVE-2026-30972: Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.34%
26.0th percentile
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| parse-community | parse-server | < 8.6.23 | 8.6.23 |
| parse-community | parse-server | — | — |
| parse-community | parse-server | >= 0 < 8.6.23 | 8.6.23 |
| parse-community | parse-server | >= 9.0.0-alpha.1 < 9.5.2-alpha.10 | 9.5.2-alpha.10 |
| parseplatform | parse-server | < 8.6.23 | 8.6.23 |
| parseplatform | parse-server | — | — |
| parseplatform | parse-server | >= 9.0.0 < 9.5.2 | 9.5.2 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.06.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L/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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Parse Server has a rate limit bypass via batch request endpoint
osv·2026-03-11
CVE-2026-30972 [MEDIUM] Parse Server has a rate limit bypass via batch request endpoint
Parse Server has a rate limit bypass via batch request endpoint
### Impact
Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (`/batch`) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit.
Any Parse Server deployment that relies on the built-in rate limiting feature is affected.
### Patches
The fix adds a pre-flight check in the batch request handler that counts the number of sub-requests targeting each rate-limited path and rejects the entire batch request if any path's count exceeds its conf
GHSA
Parse Server has a rate limit bypass via batch request endpoint
ghsa·2026-03-11
CVE-2026-30972 [MEDIUM] CWE-799 Parse Server has a rate limit bypass via batch request endpoint
Parse Server has a rate limit bypass via batch request endpoint
### Impact
Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (`/batch`) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit.
Any Parse Server deployment that relies on the built-in rate limiting feature is affected.
### Patches
The fix adds a pre-flight check in the batch request handler that counts the number of sub-requests targeting each rate-limited path and rejects the entire batch request if any path's count exceeds its conf
No detection rules found.
No public exploits indexed.
2026-03-10
Published