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CVE-2026-34574
Published:March 31, 2026
Updated:April 23, 2026
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.69 and 9.7.0-alpha.14, an authenticated user can bypass the immutability guard on session fields (expiresAt, createdWith) by sending a null value in a PUT request to the session update endpoint. This allows nullifying the session expiry, making the session valid indefinitely and bypassing configured session length policies. This issue has been patched in versions 8.6.69 and 9.7.0-alpha.14.
Affected Packages
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=2.0.0 <8.6.69
Fix Suggestion:
Update to version 8.6.69
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=9.0.0 <9.7.0-alpha.14
Fix Suggestion:
Update to version 9.7.0-alpha.14
parse-server (NPM):
Affected version(s) >=1.0.0 <8.6.69
Fix Suggestion:
Update to version 8.6.69
parse-server (NPM):
Affected version(s) >=9.0.0 <9.7.0-alpha.14
Fix Suggestion:
Update to version 9.7.0-alpha.14
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incorrect Comparison
EPSS
Base Score:
0.03