Is there a patch available for CVE-2026-34574?

Yes, a patch is available for CVE-2026-34574. Update the affected software to the latest version immediately.

Node.js CVE-2026-34574

Q: What is the CVSS score of CVE-2026-34574?

CVE-2026-34574 has a CVSS 4.0 base score of 5.3 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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. EPSS exploitation probability: 0.0%.

EUVD-2026-17502 MEDIUM

Incorrect Comparison (CWE-697)

2026-03-31 GitHub_M

GHSA-f6j3-w9v3-cq22

Authentication Bypass Node.js Parse Server Parse Community

5.3

CVSS 4.0 · Vendor: GitHub_M

Severity by source

Vendor (GitHub_M) PRIMARY

5.3 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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

Primary rating from Vendor (GitHub_M) · only source for this CVE.

CVSS VectorVendor: GitHub_M

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Patch released

Apr 01, 2026 - 02:30 nvd

Patch available

EUVD ID Assigned

Mar 31, 2026 - 15:31 euvd

EUVD-2026-17502

Analysis Generated

Mar 31, 2026 - 15:31 vuln.today

CVE Published

Mar 31, 2026 - 15:08 nvd

MEDIUM 5.3

DescriptionCVE.org

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.

AnalysisAI

Authenticated users in Parse Server prior to versions 8.6.69 and 9.7.0-alpha.14 can bypass immutability protections on session fields by submitting null values in PUT requests to the session update endpoint, allowing indefinite session validity and circumventing configured session expiration policies. The vulnerability requires valid authentication credentials to exploit and has been patched in the specified versions.

Technical ContextAI

Parse Server is a Node.js-based backend framework that manages user sessions and enforces field immutability constraints to prevent tampering with critical session metadata. The vulnerability exists in the session update endpoint's input validation logic, which fails to properly enforce immutability guards on the expiresAt and createdWith fields when null values are submitted. This is a type of CWE-697 (Incorrect Comparison) or similar logic flaw where the validation mechanism does not correctly identify null as an invalid mutation attempt. The affected CPE is cpe:2.3:a:parse-community:parse-server:*:*:*:*:*:*:*:* for all versions prior to the patched releases. The root cause involves inadequate boundary checking or type handling in the immutability enforcement layer, allowing authenticated attackers to bypass access control logic designed to prevent session field modifications.

RemediationAI

Vendor-released patch: Upgrade Parse Server to version 8.6.69 or later for the 8.x branch, or to version 9.7.0-alpha.14 or later for the 9.x branch. These versions include fixes implemented in commits 90802969fc713b7bc9733d7255c7519a6ed75d21 and ebccd7fe2708007e62f705ee1c820a6766178777, and merged via pull requests #10347 and #10348. Review and test the upgrade in a staging environment to ensure compatibility with your deployment. As an immediate workaround prior to upgrade, apply stricter input validation at the application or API gateway level to reject null values for session immutable fields, or temporarily restrict session update operations to trusted clients only. Verify that session expiration policies are enforced server-side and monitor for suspicious session extension patterns in audit logs.