GHSA-75m2-jhh5-j5g2 · Severity: high · Ecosystem: rust — Apollo Router Query Planner Vulnerable to Excessive Resource Consumption via Named Fragment Expansion
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.
Conclusion & alert: CVE-2025-32034 is rated Moderate Risk (42.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.45%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.46% | 0.45% | -0.01% |
| 2 | 2026-05-19 | 0.60% | 0.46% | -0.14% |
| 3 | 2026-05-18 | — | 0.60% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-75m2-jhh5-j5g2 · Severity: high · Ecosystem: rust — Apollo Router Query Planner Vulnerable to Excessive Resource Consumption via Named Fragment Expansion
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||