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Vulnerability Details :

CVE-2026-34595

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-31 Mar, 2026 | 15:10
Updated At-31 Mar, 2026 | 17:22
Rejected At-
Credits

Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:31 Mar, 2026 | 15:10
Updated At:31 Mar, 2026 | 17:22
Rejected At:
â–¼CVE Numbering Authority (CNA)
Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value

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.

Affected Products
Vendor
parse-community
Product
parse-server
Versions
Affected
  • < 8.6.70
  • >= 9.0.0, < 9.7.0-alpha.18
Problem Types
TypeCWE IDDescription
CWECWE-843CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
Type: CWE
CWE ID: CWE-843
Description: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2
x_refsource_CONFIRM
https://github.com/parse-community/parse-server/pull/10350
x_refsource_MISC
https://github.com/parse-community/parse-server/pull/10351
x_refsource_MISC
https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98
x_refsource_MISC
https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2
x_refsource_MISC
Hyperlink: https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/parse-community/parse-server/pull/10350
Resource:
x_refsource_MISC
Hyperlink: https://github.com/parse-community/parse-server/pull/10351
Resource:
x_refsource_MISC
Hyperlink: https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98
Resource:
x_refsource_MISC
Hyperlink: https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2
Resource:
x_refsource_MISC
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:31 Mar, 2026 | 16:16
Updated At:02 Apr, 2026 | 17:12

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CPE Matches
parseplatform
parseplatform
>>parse-server>>Versions before 8.6.70(exclusive)
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>Versions from 9.0.0(inclusive) to 9.7.0(exclusive)
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha1:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha11:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha12:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha13:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha14:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha15:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha2:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha3:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha4:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha5:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha6:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha7:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha8:*:*:*:node.js:*:*
parseplatform
parseplatform
>>parse-server>>9.7.0
cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha9:*:*:*:node.js:*:*
Weaknesses
CWE IDTypeSource
CWE-843Primarysecurity-advisories@github.com
CWE ID: CWE-843
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98security-advisories@github.com
Patch
https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2security-advisories@github.com
Patch
https://github.com/parse-community/parse-server/pull/10350security-advisories@github.com
Issue Tracking
Patch
https://github.com/parse-community/parse-server/pull/10351security-advisories@github.com
Issue Tracking
Patch
https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2security-advisories@github.com
Patch
Vendor Advisory
Hyperlink: https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/parse-community/parse-server/pull/10350
Source: security-advisories@github.com
Resource:
Issue Tracking
Patch
Hyperlink: https://github.com/parse-community/parse-server/pull/10351
Source: security-advisories@github.com
Resource:
Issue Tracking
Patch
Hyperlink: https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2
Source: security-advisories@github.com
Resource:
Patch
Vendor Advisory

Change History

0
Information is not available yet

Similar CVEs

2Records found
CVE-2026-39381
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-5.3||MEDIUM
EPSS-0.03% / 6.82%
||
7 Day CHG~0.00%
Published-07 Apr, 2026 | 19:51
Updated-15 Apr, 2026 | 15:57
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Parse Server's Endpoint `/sessions/me` bypasses `_Session` `protectedFields`

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.7 and 8.6.75, the GET /sessions/me endpoint returns _Session fields that the server operator explicitly configured as protected via the protectedFields server option. Any authenticated user can retrieve their own session's protected fields with a single request. The equivalent GET /sessions and GET /sessions/:objectId endpoints correctly strip protected fields. This vulnerability is fixed in 9.8.0-alpha.7 and 8.6.75.

Action-Not Available
Vendor-parseplatformparse-community
Product-parse-serverparse-server
CWE ID-CWE-863
Incorrect Authorization
CVE-2020-15270
Matching Score-8
Assigner-GitHub, Inc.
ShareView Details
Matching Score-8
Assigner-GitHub, Inc.
CVSS Score-4.3||MEDIUM
EPSS-0.25% / 48.64%
||
7 Day CHG~0.00%
Published-22 Oct, 2020 | 21:25
Updated-04 Aug, 2024 | 13:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Improper session expiration in Parse Server

Parse Server (npm package parse-server) broadcasts events to all clients without checking if the session token is valid. This allows clients with expired sessions to still receive subscription objects. It is not possible to create subscription objects with invalid session tokens. The issue is not patched.

Action-Not Available
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Product-parse-serverparse-server
CWE ID-CWE-672
Operation on a Resource after Expiration or Release
Details not found