CVE-2025-31496 apollo-compiler Named Fragment Processing Vulnerability
Attackers can cause denial of service in applications using apollo-compiler by submitting queries with deeply nested and reused named fragments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-31496?
CVE-2025-31496 is a high-severity denial of service vulnerability in apollographql apollo-rs, published on 7 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-770
Which versions are affected by CVE-2025-31496?
2 open source packages ship an affected version, including apollo-compiler.
| Package | Affected | Fixed in |
|---|---|---|
apollo-compiler crates.io | All versions | 1.27.0 |
apollo-compiler crates.io | All versions | 1.27.0 |
How do I fix CVE-2025-31496?
Upgrade apollo-compiler to 1.27.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-31496 being exploited?
There is no known exploitation of CVE-2025-31496 in the wild and no public exploit code.
Sources
Also known as GHSA-7mpv-9xg6-5r79.