apollographql router up to 1.61.1/2.1.0 allocation of resources

Summaryinfo

A vulnerability was found in apollographql router up to 1.61.1/2.1.0. It has been rated as critical. Affected by this issue is some unknown functionality. This manipulation causes allocation of resources. The identification of this vulnerability is CVE-2025-32380. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in apollographql router up to 1.61.1/2.1.0. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

The Apollo Router Core is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. A vulnerability in Apollo Router's usage of Apollo Compiler allowed queries with deeply nested and reused named fragments to be prohibitively expensive to validate. This could lead to excessive resource consumption and denial of service. Apollo Router's usage of Apollo Compiler has been updated so that validation logic processes each named fragment only once, preventing redundant traversal. This has been remediated in apollo-router versions 1.61.2 and 2.1.1.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-32380 since 04/06/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 1.61.2 or 2.1.1 eliminates this vulnerability. Applying the patch ab6675a63174715ea6ff50881fc957831d4e9564 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• apollographql

Name

• router

Version

• 1.61.0
• 1.61.1
• 2.0
• 2.1.0

License

• open-source

Website

• Product: https://github.com/apollographql/router/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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