Processing of unverified relay events
The processed events received from a relay through admission-policy and database
paths before verifying that the serialized fields matched the claimed event ID and
signature. In particular, a database result for the claimed ID could cause
verification to be skipped. The verification cache also keyed successful checks by a
64-bit hash instead of the complete event ID.
A malicious relay could send an event whose claimed ID referred to a known database
entry while its content, tags, author, or signature differed from that ID. The forged
event could then reach policy callbacks or other SDK processing as if it were
authentic. A cache-key collision provided a second path for an unverified event to be
treated as previously verified. This undermines event integrity but does not reveal
private keys or enable the attacker to produce a valid signature for the altered
event.
The SDK now verifies each event before policy evaluation, database lookup, or
propagation decisions, and the verification cache stores the complete EventId so a
truncated hash collision cannot stand in for successful verification.
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
RUSTSEC-2026-0232 is recorded against 1 package.
Published on 1 August 2026 and last revised on 2 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
crates.io (Package)
rustsec.org (Advisory)
github.com (Web)
nostr-relay-pool has other advisories on record. If you are patching this one, these are worth checking on the same host:
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| nostr-relay-pool | — | — |
References
Similar Threats
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