Medium 6.9Published Mar 18, 2026

CVE-2026-33042Parse Server affected by empty authData bypassing credential requirement on signup

Updated under an hour ago (Oct 27, 2026, 5:00 PM ET)

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It affects parse-community parse-server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for parse-community parse-server

Exploited in the last 30 days

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled. The fix in 9.6.0-alpha.29 and 8.6.49 ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present. As a workaround, use a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-287
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

parse-community parse-server parse_community:parse_server (from the name)	from 9.0.0, < 9.6.0-alpha.29; before 8.6.49	CNA record
parseplatform parse-server parseplatform:parse-server	before 8.6.49; from 9.0.0 before 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; 9.6.0; and 22 more ranges	NVD

References

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-wjqw-r9x4-j59v	x-refsource-confirm, vendor-advisory
https://github.com/parse-community/parse-server/pull/10219	x-refsource-misc, issue-tracking
https://github.com/parse-community/parse-server/pull/10220	x-refsource-misc, issue-tracking

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.