Denial of Service Vulnerability in Apollo Router Core by Apollo GraphQL
CVE-2025-32034

7.5HIGH

Key Information:

Vendor

Apollographql

Status
Router
Vendor
CVE Published:
7 April 2025

What is CVE-2025-32034?

The Apollo Router Core, a high-performance graph router designed to operate with Apollo Federation 2, contains a vulnerability that affects the efficiency of query planning. Specifically, prior to the patches present in versions 1.61.2 and 2.1.1, the router allowed for queries that featured deeply nested and reused named fragments to become excessively resource-intensive. This issue arises because named fragments are expanded multiple times during query planning, leading to exponential growth in resource utilization. Consequently, this vulnerability opens avenues for denial-of-service attacks, resulting in potential system outages and disruptions. Immediate upgrades to the latest versions are recommended to mitigate these risks.

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Deploy the Patch

Affected Version(s)

router < 1.61.2 < 1.61.2

router >= 2.0.0-alpha.0, < 2.1.1 < 2.0.0-alpha.0, 2.1.1

References

https://github.com/apollographql/router/security/advisori...
x_refsource_CONFIRM
https://github.com/apollographql/router/commit/ab6675a631...
x_refsource_MISC
https://github.com/apollographql/router/commit/bba032e183...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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