CVE-2021-39187
HIGHparse-server < 4.10.3 - Denial of Service via Invalid Explain Query Option
Title source: llmDescription
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to version 4.10.3, Parse Server crashes when if a query request contains an invalid value for the `explain` option. This is due to a bug in the MongoDB Node.js driver which throws an exception that Parse Server cannot catch. There is a patch for this issue in version 4.10.3. No workarounds aside from upgrading are known to exist.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/parse-community/parse-server/security/advisories/GHSA-xqp8-w826-hh6x
Patch, Third Party Advisory x_refsource_misc
https://github.com/parse-community/parse-server/commit/308668c89474223e2448be92d6823b52c1c313ec
Third Party Advisory x_refsource_misc
https://github.com/parse-community/parse-server/releases/tag/4.10.3
Patch, Third Party Advisory x_refsource_misc
https://jira.mongodb.org/browse/NODE-3463
Scores
CVSS v3
7.5
EPSS
0.0176
EPSS Percentile
75.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-755
CWE-74
Status
published
Products (2)
npm/parse-server
0 - 4.10.3npm
parseplatform/parse-server
< 4.10.3
Published
Sep 02, 2021
Tracked Since
Feb 18, 2026