CVE-2021-39187

Description

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.

How to fix CVE-2021-39187

To remediate CVE-2021-39187, upgrade the affected package to a fixed version below.

• —upgrade to 4.10.3 or later
• —upgrade to 4.10.3 or later

Is CVE-2021-39187 being exploited?

Low — EPSS is 1.8%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 4.10.3
• from 0, < 4.10.3

CVSS scores

References (6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-39187
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/commit/308668c89474223e2448be92d6823b52c1c313ec
• WEBgithub.com/parse-community/parse-server/releases/tag/4.10.3