GHSA-84m6-5m72-45fp · Severity: high · Ecosystem: rust — Apollo Router Operation Limits Vulnerable to Bypass via Integer Overflow
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, the operation limits plugin uses unsigned 32-bit integers to track limit counters (e.g. for a query's height). If a counter exceeded the maximum value for this data type (4,294,967,295), it wrapped around to 0, unintentionally allowing queries to bypass configured thresholds. This could occur for large queries if the payload limit were sufficiently increased, but could also occur for small queries with deeply nested and reused named fragments. This has been remediated in apollo-router versions 1.61.2 and 2.1.1.
Conclusion & alert: CVE-2025-32033 is rated Moderate Risk (45.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.22%). 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 | 2026-05-19 | 0.29% | 0.22% | -0.07% |
| 2 | 2026-05-18 | 0.21% | 0.29% | +0.08% |
| 3 | 2026-05-16 | — | 0.21% | — |
Full EPSS history (8 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-84m6-5m72-45fp · Severity: high · Ecosystem: rust — Apollo Router Operation Limits Vulnerable to Bypass via Integer Overflow
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||