HOMEVULNERABILITIESCVE-2026-30938
MEDIUM

CVE-2026-30938

CWE-693Published: March 10, 2026· Updated: Mar 11, 2026

5.3
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:16.1th

Official Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.12 and 9.5.1-alpha.1, the requestKeywordDenylist security control can be bypassed by placing any nested object or array before a prohibited keyword in the request payload. This is caused by a logic bug that stops scanning sibling keys after encountering the first nested value. Any custom requestKeywordDenylist entries configured by the developer are equally by-passable using the same technique. All Parse Server deployments are affected. The requestKeywordDenylist is enabled by default. This vulnerability is fixed in 8.6.12 and 9.5.1-alpha.1. Use a Cloud Code beforeSave trigger to validate incoming data for prohibited keywords across all classes.

NVD Source

Technical Analysis

CVE-2026-30938 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
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

parseplatform1 product
parse-server
Source: NVD CPE · 1 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-q342-9w2p-57fp

All References (3)

→
https://github.com/parse-community/parse-server/releases/tag/8.6.12Product · Release Notes
→
https://github.com/parse-community/parse-server/releases/tag/9.5.1-alpha.1Product · Release Notes
→
https://github.com/parse-community/parse-server/security/advisories/GHSA-q342-9w2p-57fpMitigation · Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-30938
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-693
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMar 10, 2026

Related CVEs (CWE-693)

CVE-2026-47140
10.0
CVE-2026-34208
10.0
CVE-2026-34938
10.0
CVE-2026-45102
9.9
CVE-2024-55024
9.8
CVE-2026-26956
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-30938 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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