# CVE-2025-32034: Apollo Router Query Planner Vulnerable to Excessive Resource Consumption via Named Fragment Expansion

> CVE-2025-32034: Apollo Router Query Planner Vulnerable to Excessive Resource Consumption via Named Fragment Expansion. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-32034
Last updated: 2026-06-17T09:11:21Z

- Published: 2025-04-07 20:50 UTC · Updated: 2026-06-17 09:11 UTC · Assigner: GitHub\_M
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.54%, 45th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-770

## Description

The Apollo Router Core is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. Prior to 1.61.2 and 2.1.1, a vulnerability in Apollo Router allowed queries with deeply nested and reused named fragments to be prohibitively expensive to query plan, specifically during named fragment expansion. Named fragments were being expanded once per fragment spread during query planning, leading to exponential resource usage when deeply nested and reused fragments were involved. This could lead to excessive resource consumption and denial of service. This has been remediated in apollo-router versions 1.61.2 and 2.1.1.

## Affected vendors and products

- apollographql: router

## Tracked companies

- [Apollo GraphQL](https://rewindex.com/company/apollo-graphql.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-32034)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-32034)
- [https://github.com/apollographql/router/commit/ab6675a63174715ea6ff50881fc957831d4e9564](https://github.com/apollographql/router/commit/ab6675a63174715ea6ff50881fc957831d4e9564)
- [https://github.com/apollographql/router/commit/bba032e183b861348a466d3123c7137a1ae18952](https://github.com/apollographql/router/commit/bba032e183b861348a466d3123c7137a1ae18952)
- [https://github.com/apollographql/router/security/advisories/GHSA-75m2-jhh5-j5g2](https://github.com/apollographql/router/security/advisories/GHSA-75m2-jhh5-j5g2)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-32034 · Markdown: https://rewindex.com/cve/CVE-2025-32034.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-32034 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:01:45.752Z