parse-community parse-server up to 8.6.56/9.6.0-alpha.47 REST API authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k1.75

Summaryinfo

A vulnerability labeled as problematic has been found in parse-community parse-server up to 8.6.56/9.6.0-alpha.47. Impacted is an unknown function of the component REST API. Executing a manipulation can lead to authorization. This vulnerability is tracked as CVE-2026-33527. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in parse-community parse-server up to 8.6.56/9.6.0-alpha.47. It has been declared as problematic. This vulnerability affects an unknown part of the component REST API. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect integrity. CVE summarizes:

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.57 and 9.6.0-alpha.48, an authenticated user can overwrite server-generated session fields such as expiresAt and createdWith when updating their own session via the REST API. This allows bypassing the server's configured session lifetime policy, making a session effectively permanent. This issue has been patched in versions 8.6.57 and 9.6.0-alpha.48.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-33527 since 03/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 8.6.57 or 9.6.0-alpha.48 eliminates this vulnerability. Applying the patch 26b628c8fb3cc79ea955374769eebcff6f8a8a73 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: parse-server 8.6.57/9.6.0-alpha.48
Patch: 26b628c8fb3cc79ea955374769eebcff6f8a8a73

Timelineinfo

03/20/2026 CVE reserved
03/24/2026 +4 days Advisory disclosed
03/24/2026 +0 days VulDB entry created
03/29/2026 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-jc39-686j-wp6q
Status: Confirmed

CVE: CVE-2026-33527 (🔒)
GCVE (CVE): GCVE-0-2026-33527
GCVE (VulDB): GCVE-100-352852

Entryinfo

Created: 03/24/2026 20:53
Updated: 03/29/2026 09:02
Changes: 03/24/2026 20:53 (69), 03/29/2026 09:02 (11)
Complete: 🔍
Cache ID: 216:F1F:103

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