Description

apollo-compiler is a query-based compiler for the GraphQL query language. Prior to 1.27.0, a vulnerability in Apollo Compiler allowed queries with deeply nested and reused named fragments to be prohibitively expensive to validate. Named fragments were being processed once per fragment spread in some cases during query validation, leading to exponential resource usage when deeply nested and reused fragments were involved. This could lead to excessive resource consumption and denial of service in applications. This vulnerability is fixed in 1.27.0.

Classification

CVE ID: CVE-2025-31496

CVSS Base Severity: HIGH

CVSS Base Score: 7.5

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor: apollographql

Product: apollo-rs

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 16.29% (scored less or equal to compared to others)

EPSS Date: 2025-04-22 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-31496
https://github.com/apollographql/apollo-rs/security/advisories/GHSA-7mpv-9xg6-5r79
https://github.com/apollographql/apollo-rs/pull/952

Timeline