HOMEVULNERABILITIESCVE-2026-31901
MEDIUM

CVE-2026-31901

CWE-204Published: March 11, 2026· Updated: Mar 13, 2026

5.3
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0-alpha.8, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0-alpha.8.

NVD Source

Technical Analysis

CVE-2026-31901 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

parseplatform1 product
parse-server
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856

All References (3)

→
https://github.com/parse-community/parse-server/releases/tag/8.6.34Product · Release Notes
→
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8Product · Release Notes
→
https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-31901
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-204
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 11, 2026

Related CVEs (CWE-204)

CVE-2018-25350
9.8
CVE-2026-33419
9.1
CVE-2019-25338
7.5
CVE-2026-4113
7.2
CVE-2026-54445
6.9
CVE-2026-53908
6.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-31901 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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