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CVE-2025-32380: Apollo Router Query Validation Vulnerable to Excessive Resource Consumption via Named Fragment Processing

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-09 · updated 2026-06-17
• Weakness: 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. A vulnerability in Apollo Router's usage of Apollo Compiler allowed queries with deeply nested and reused named fragments to be prohibitively expensive to validate. This could lead to excessive resource consumption and denial of service. Apollo Router's usage of Apollo Compiler has been updated so that validation logic processes each named fragment only once, preventing redundant traversal. This has been remediated in apollo-router versions 1.61.2 and 2.1.1.

Affected products

• apollographql router: before 1.61.2; from 2.0.0-alpha.0, < 2.1.1

References

• https://github.com/apollographql/router/commit/ab6675a63174715ea6ff50881fc957831d4e9564
• https://github.com/apollographql/router/commit/bba032e183b861348a466d3123c7137a1ae18952
• https://github.com/apollographql/router/security/advisories/GHSA-3j43-9v8v-cp3f

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