CVE-2021-41109

Description

### Impact For regular (non-LiveQuery) queries, the session token is removed from the response, but for LiveQuery payloads it is currently not. If a user has a LiveQuery subscription on the `Parse.User` class, all session tokens created during user sign-ups will be broadcast as part of the LiveQuery payload. ### Patches Remove session token from LiveQuery payload. ### Workaround Set `user.acl(new Parse.ACL())` in a beforeSave trigger to make the user private already on sign-up.

How to fix CVE-2021-41109

To remediate CVE-2021-41109, upgrade the affected package to a fixed version below.

• —upgrade to 4.10.4 or later
• —upgrade to 4.10.4 or later

Is CVE-2021-41109 being exploited?

Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 4.10.4
• from 0, < 4.10.4

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-41109
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1e9ac5559
• WEBgithub.com/parse-community/parse-server/releases/tag/4.10.4