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CVE-2026-34574

Parse Server: Session field immutability bypass via falsy-value guard

Published: Mar 31, 2026Updated: Jul 24, 2026 Sources: CVE List NVDCWE-697
5.4MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 88.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.69 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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-697

Affected Products

parseplatform
oss-projectaka parse-community, parse-server, parse server, parse, parse platform
parse-serverLibraryLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available

References

https://github.com/parse-community/parse-server/commit/90802969fc713b7bc9733d7255c7519a6ed75d21
github.com
https://github.com/parse-community/parse-server/commit/ebccd7fe2708007e62f705ee1c820a6766178777
github.com
https://github.com/parse-community/parse-server/pull/10347
github.com
and 2 more references View all →

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