CVE-2026-4148 ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline...

CVE-2026-4148

A use-after-free vulnerability (CVE-2026-4148) affects MongoDB in sharded clusters, triggered by an authenticated user with read role issuing a specially crafted $lookup or $graphLookup aggregation. The linked OSV entry cites the failure in ExpressionContext within the classic engine as the root ...

PT-2026-25907

Name of the Vulnerable Software and Affected Versions MongoDB Server affected versions not specified Description A use-after-free issue can occur in sharded clusters when a user with read access submits a specifically designed aggregation pipeline using either the $lookup or $graphLookup operator...

GHSA-495J-H493-42Q2 Strapi Allows Unauthorized Access to Private Fields via parms.lookup

Summary It's possible to access any private fields by filtering through the lookup parameters Details Using the new lookup operator provided by the document service in Strapi 5, it is not properly sanitizing this query operator for private fields. PoC 1. Create a strapi app. 2. Create a...

Strapi Allows Unauthorized Access to Private Fields via parms.lookup

Summary It's possible to access any private fields by filtering through the lookup parameters Details Using the new lookup operator provided by the document service in Strapi 5, it is not properly sanitizing this query operator for private fields. PoC 1. Create a strapi app. 2. Create a...

Authorization Bypass Through User-Controlled Key

Overview @strapi/core is a Core of Strapi Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the lookup operator in the document service due to improper sanitization of query operator for private fields . An attacker can retrieve sensitive...

CVE-2024-56143: Authorization Bypass Through User-Controlled Key

Strapi is an open-source headless content management system. In versions from 5.0.0 to before 5.5.2, the lookup operator provided by the document service does not properly sanitize query parameters for private fields. An attacker can access private fields, including admin passwords and reset...

Mongodb Server Resource Management Error Vulnerability

Mongodb Server is the United States Mongodb company's set of open source NoSQL database . The database provides collection-oriented storage , dynamic query , data replication and automatic failover and other functions . A security vulnerability exists in MongoDB Server that originates from the...