Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The nostr crate on crates.io, versions before 0.44.6 and from 0.45.0-alpha.1 up to but not including 0.45.0-alpha.6, does not check the length of the initialization vector in NIP-04 encrypted messages, so a malformed IV causes a panic. An attacker who can send a crafted encrypted event to an application that decrypts untrusted NIP-04 content, including through NIP-47 wallet responses, can crash the application or disrupt message processing. Upgrade to nostr 0.44.6 or 0.45.0-alpha.6; no workaround is listed.
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
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 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
- 31 Oct 2026, 15:18 UTC First seen by agentprime
- 31 Oct 2026, 15:18 UTC Confirmed by OSV