RUSTSEC-2026-0230
Empty NIP-50 search filters can panic
The NIP-50 event-matching path searched event content with
slice::windows(search.len()). An empty search string therefore called
slice::windows(0), which always panics instead of returning a match result.
A remote client able to submit filters to an application using this matcher could trigger the panic with an empty NIP-50 search value. This includes clients querying an SDK local relay. Depending on the application's panic configuration and task isolation, the crafted filter could terminate request processing, a runtime worker, or the entire process, causing denial of service. No confidentiality or integrity impact is known.
Empty searches are now handled before the substring search, so the matcher returns a defined result without constructing a zero-sized window or panicking.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
What each source reports
OSV Score used
Empty NIP-50 search filters can panic
The NIP-50 event-matching path searched event content with
slice::windows(search.len()). An empty search string therefore called
slice::windows(0), which always panics instead of returning a match result.
A remote client able to submit filters to an application using this matcher could trigger the panic with an empty NIP-50 search value. This includes clients querying an SDK local relay. Depending on the application's panic configuration and task isolation, the crafted filter could terminate request processing, a runtime worker, or the entire process, causing denial of service. No confidentiality or integrity impact is known.
Empty searches are now handled before the substring search, so the matcher returns a defined result without constructing a zero-sized window or panicking.
- Record
RUSTSEC-2026-0230- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nostrcrates.io |
0.0.0-0 up to 0.44.7 | 0.44.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
RUSTSEC-2026-0230 is a high vulnerability (CVSS 7.5) in nostr, published August 1, 2026. No source lists public exploit code. Fixed in nostr 0.44.7.