High 8.2Published Mar 11, 2026

CVE-2026-31875Parse Server MFA recovery codes not consumed after use

Updated under an hour ago (Oct 27, 2026, 4:50 PM ET)

Does this affect you?

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.

Do this next

Start free and add your stack

Free account, 1 product

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.7 and 8.6.33, when multi-factor authentication (MFA) via TOTP is enabled for a user account, Parse Server generates two single-use recovery codes. These codes are intended as a fallback when the user cannot provide a TOTP token. However, recovery codes are not consumed after use, allowing the same recovery code to be used an unlimited number of times. This defeats the single-use design of recovery codes and weakens the security of MFA-protected accounts. An attacker who obtains a single recovery code can repeatedly authenticate as the affected user without the code ever being invalidated. This vulnerability is fixed in 9.6.0-alpha.7 and 8.6.33.

CVSS: 8.2 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-672
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 12, 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.7; before 8.6.33	CNA record
parseplatform parse-server parseplatform:parse-server	before 8.6.33; 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	NVD

References

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-4hf6-3x24-c9m8	x-refsource-confirm, patch, vendor-advisory
https://github.com/parse-community/parse-server/releases/tag/8.6.33	x-refsource-misc, product, release-notes
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.7	x-refsource-misc, product, release-notes

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.