High severity · published Sep 2, 2021
CVE-2021-39187
Crash server with query parameter
7.5
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
parse-server · parse-community
< 4.10.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39187
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39187
Patch
https://github.com/parse-community/parse-server/commit/308668c89474223e2448be92d6823b52c1c313ec
Third Party Advisory
https://github.com/parse-community/parse-server/releases/tag/4.10.3
Third Party Advisory
https://github.com/parse-community/parse-server/security/advisories/GHSA-xqp8-w826-hh6x
Patch
https://jira.mongodb.org/browse/NODE-3463
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