---
id: RUSTSEC-2026-0237
title: '`nostr-relay-builder` is unmaintained'
summary: '`nostr-relay-builder` is unmaintained'
severity: none
vendor: nostr-relay-builder
product: nostr-relay-builder
ecosystem: rust
affected:
  - nostr-relay-builder >= 0.0.0-0
published: '2026-08-03'
updated: '2026-08-09'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/RUSTSEC-2026-0237'
references:
  - url: 'https://crates.io/crates/nostr-relay-builder'
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0237.html'
  - url: 'https://github.com/nostrdevkit/nostr/issues/1415'
tags:
  - osv
  - rust
ingestedAt: '2026-08-09T19:16:06.015Z'
---

## Overview

The `nostr-relay-builder` crate is no longer actively maintained as a standalone crate.

Its functionality has been incorporated into [`nostr-sdk`](https://crates.io/crates/nostr-sdk) starting with version `0.45.0`.

Users should migrate to [`nostr-sdk`](https://crates.io/crates/nostr-sdk).

## Affected packages

- `nostr-relay-builder >= 0.0.0-0`

## Remediation

Refer to the advisory for the patched release.