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Advisory record · GHSA-hrqp-8w79-gwgw

Remote Denial of Service via malformed NIP‑44 v2 payload

CVSS 7.5 High

Published by the GitHub Advisory Database at 25 Jul 2026, 12:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
nostrcrates.io>=0.0.0-0, <0.44.5 || >=0.45.0-alpha.1, <0.45.0-alpha.50.44.5, 0.45.0-alpha.5
Identifiers
GHSA-hrqp-8w79-gwgw · RUSTSEC-2026-0216
Published
25 Jul 2026
Updated
1 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The nostr crate, versions from 0.26.0 up to 0.44.4 and the alpha releases 0.45.0-alpha.1 through 0.45.0-alpha.4, can panic when decrypting a malformed NIP-44 v2 payload. An attacker who holds the conversation key, such as a direct-message sender, can send a crafted event through a relay that causes a remote denial of service. Upgrade to nostr 0.44.5 or 0.45.0-alpha.5.

Written 8 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H OSV
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 15:18 UTC First seen by agentprime
  2. 31 Oct 2026, 15:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.