HOMEVULNERABILITIESCVE-2026-34595
MEDIUM

CVE-2026-34595

CWE-843Published: March 31, 2026· Updated: Apr 2, 2026

4.3
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:13.9th

Official Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0-alpha.18, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0-alpha.18.

NVD Source

Technical Analysis

CVE-2026-34595 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/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/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98
PATCHhttps://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2
PATCHhttps://github.com/parse-community/parse-server/pull/10350
PATCHhttps://github.com/parse-community/parse-server/pull/10351
PATCHhttps://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2

All References (5)

→
https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98Patch
→
https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2Patch
→
https://github.com/parse-community/parse-server/pull/10350Issue Tracking · Patch
→
https://github.com/parse-community/parse-server/pull/10351Issue Tracking · Patch
→
https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-34595
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-843
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 31, 2026

Related CVEs (CWE-843)

CVE-2026-13776
9.8
CVE-2026-13883
9.6
CVE-2026-11052
9.6
CVE-2026-14423
9.6
CVE-2026-58289
9.0
CVE-2026-6307
8.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-34595 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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