# RUSTSEC-2026-0231 - Relay authentication challenges can exhaust memory

Source: https://junglewise.ai/threats/rustsec-2026-0231-relay-authentication-challenges-can-exhaust-memory-dc7729d8  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-01  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2026-08-01

Relay authentication challenges can exhaust memory

Technologies: [nostr-relay-pool (crates.io)](https://junglewise.ai/threats/technologies/nostr-relay-pool). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 1 August 2026.

**Which products and versions are affected?** nostr-relay-pool (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.44.3.

**Is there a fix for This vulnerability?** Yes. nostr-relay-pool (crates.io): upgrade to 0.44.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run nostr-relay-pool (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- nostr-relay-pool (crates.io): upgrade to 0.44.3 or later

  ```sh
  cargo update -p nostr-relay-pool
  ```


## Affected products

- nostr-relay-pool (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.44.3

## Related threats

- [RUSTSEC-2026-0243 - `nostr-relay-pool` is unmaintained](https://junglewise.ai/threats/rustsec-2026-0243-nostr-relay-pool-is-unmaintained-dddaae1a)
- [RUSTSEC-2026-0232 - Processing of unverified relay events](https://junglewise.ai/threats/rustsec-2026-0232-processing-of-unverified-relay-events-12501f81)
- [RUSTSEC-2026-0224 - Verification cache poisoning allows forged Nostr events to bypass signature validation](https://junglewise.ai/threats/rustsec-2026-0224-verification-cache-poisoning-allows-forged-nostr-ca670d53)