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.
References
| Link | Resource |
|---|---|
| https://github.com/parse-community/parse-server/releases/tag/8.6.11 | Product Release Notes |
| https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.14 | Product Release Notes |
| https://github.com/parse-community/parse-server/security/advisories/GHSA-mf3j-86qx-cq5j | Mitigation Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
11 Mar 2026, 19:53
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/parse-community/parse-server/releases/tag/8.6.11 - Product, Release Notes | |
| References | () https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.14 - Product, Release Notes | |
| References | () https://github.com/parse-community/parse-server/security/advisories/GHSA-mf3j-86qx-cq5j - Mitigation, Patch, Vendor Advisory | |
| First Time |
Parseplatform
Parseplatform parse-server |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| CPE | cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha11:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha7:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha5:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha4:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha6:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha12:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha13:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha10:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha9:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha8:*:*:*:node.js:*:* cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2:*:*:*:node.js:*:* |
10 Mar 2026, 17:40
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-10 17:40
Updated : 2026-03-11 19:53
NVD link : CVE-2026-30925
Mitre link : CVE-2026-30925
CVE.ORG link : CVE-2026-30925
JSON object : View
Products Affected
parseplatform
- parse-server
CWE
CWE-1333
Inefficient Regular Expression Complexity