graphprotocol / graphprotocol/graph-node
RUSTSEC-2026-0179: Unbounded SCRAM iteration count allows a malicious server to cause CPU-exhaustion denial of service
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- Rust
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Description
Unbounded SCRAM iteration count allows a malicious server to cause CPU-exhaustion denial of service
| Details | |
|---|---|
| Package | postgres-protocol |
| Version | 0.6.9 |
| URL | https://github.com/rust-postgres/rust-postgres/commit/d40097a36a85068ea50a3afbf0ce154ba439e7f0 |
| Date | 2026-06-12 |
| Patched versions | >=0.6.12 |
| Unaffected versions | <0.3.0 |
A malicious, compromised, or man-in-the-middle server can supply an arbitrarily
large SCRAM-SHA-256 PBKDF2 iteration count during authentication. The client
runs it inline with no upper bound, pinning a tokio worker thread for minutes
per connection, possibly stalling the whole async runtime.
Applications that connect only to a trusted database are not exposed; the risk
applies to clients that may connect to untrusted or user-supplied servers, or
whose connection can be intercepted by a man-in-the-middle.
See advisory page for additional details.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The report concerns the Rust postgres-protocol package; begin with the linked upstream commit and RustSec advisory to determine how graph-node resolves this dependency. Confirm that the dependency uses a patched postgres-protocol version (>=0.6.12) and that the affected SCRAM authentication path is addressed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- postgres, rust
- Domain
- authentication, databases, security
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 42/100