apollo federation-internals/gateway/query-planner up to 2.13.1 prototype pollution

Summaryinfo

A vulnerability was found in apollo federation-internals, gateway and query-planner up to 2.9.5/2.10.4/2.11.5/2.12.2/2.13.1. It has been declared as critical. This affects an unknown part. Such manipulation leads to prototype pollution. This vulnerability is documented as CVE-2026-32621. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in apollo federation-internals, gateway and query-planner up to 2.9.5/2.10.4/2.11.5/2.12.2/2.13.1. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a prototype pollution vulnerability. Using CWE to declare the problem leads to CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Apollo Federation is an architecture for declaratively composing APIs into a unified graph. Prior to 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2, a vulnerability exists in query plan execution within the gateway that may allow pollution of Object.prototype in certain scenarios. A malicious client may be able to pollute Object.prototype in gateway directly by crafting operations with field aliases and/or variable names that target prototype-inheritable properties. Alternatively, if a subgraph were to be compromised by a malicious actor, they may be able to pollute Object.prototype in gateway by crafting JSON response payloads that target prototype-inheritable properties. This vulnerability is fixed in 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-32621 since 03/12/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 2.9.6, 2.10.5, 2.11.6, 2.12.3 or 2.13.2 eliminates this vulnerability.

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Productinfo

Vendor

• apollo

Name

• federation-internals
• gateway
• query-planner

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3
• 2.11.4
• 2.11.5
• 2.12.0
• 2.12.1
• 2.12.2
• 2.13.0
• 2.13.1

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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Entryinfo

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