RUSTSEC-2026-0415 Unbounded memory use on large request bodies
- Exploited in the wild
- Not known
- Fix
- Available
What is RUSTSEC-2026-0415?
RUSTSEC-2026-0415 is a vulnerability in juniper_hyper, published on 28 Oct 2026.
Official description
The graphql() and graphql_sync() functions of juniper_hyper read the whole body of a POST request into memory before they parsed the body. The functions had no limit on the size of the body. A client could thus send a large body and exhaust the memory of the server. The request needs no authentication.
juniper_hyper 0.10.1 reads at most 2 MiB of a request body by default. The functions respond with 413 Payload Too Large to larger bodies. A juniper_hyper::BodyLimit in the extensions of a request changes the limit for the request.
Which versions are affected by RUSTSEC-2026-0415?
1 open source package ship an affected version, including juniper_hyper.
| Package | Affected | Fixed in |
|---|---|---|
juniper_hyper crates.io | From 0.0.0-0 | 0.10.1 |
How do I fix RUSTSEC-2026-0415?
Upgrade juniper_hyper to 0.10.1 or later.
Is RUSTSEC-2026-0415 being exploited?
There is no known exploitation of RUSTSEC-2026-0415 in the wild and no public exploit code.
Sources
Also known as GHSA-pfrg-qg4f-grmv.