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High 7.5Published Mar 10, 2026

CVE-2026-30925Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js.

Updated under an hour ago ()

Does this affect you?

It affects parseplatform parse-server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.0-alpha.14 and 8.6.11, a malicious client can subscribe to a LiveQuery with a crafted $regex pattern that causes catastrophic backtracking, blocking the Node.js event loop. This makes the entire Parse Server unresponsive, affecting all clients. Any Parse Server deployment with LiveQuery enabled is affected. The attacker only needs the application ID and JavaScript key, both of which are public in client-side apps. This only affects LiveQuery subscription matching, which evaluates regex in JavaScript on the Node.js event loop. Normal REST and GraphQL queries are not affected because their regex is evaluated by the database engine. This vulnerability is fixed in 9.5.0-alpha.14 and 8.6.11.

CVSS
7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-1333
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jun 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
parseplatform parse-server
parseplatform:parse-server
before 8.6.11; from 9.0.0 before 9.5.0; 9.5.0; 9.5.0; 9.5.0; 9.5.0; 9.5.0; 9.5.0; and 7 more ranges
NVD

References

  • product, release-notes
  • product, release-notes
  • mitigation, patch, vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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