Home
» GitHub Advisories
» GHSA-7c4j-2m43-2mgh
Description
Impact
An untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key.
Hashing an election macro header hashes validators and reaches Validators::voting_keys(), which calls validator.voting_key.uncompress().unwrap() and panics on invalid bytes.
Patches
The patch for this vulnerability is included as part of v1.3.0 .
Workarounds
No known workarounds.
Basic information
Type
reviewed
Severity
high Advisory on GitHub
Open advisory ↗ Repository advisory
Open repository advisory ↗ Source code
Browse source ↗ Published (advisory)
2026-04-22 19:19:28 UTC
Updated
2026-04-27 16:22:33 UTC
GitHub reviewed
2026-04-22 19:19:28 UTC
NVD published
2026-04-22
EPSS Score
Score
Percentile
0.05%
14.76%
CVSS Scores
Base score
Version
Severity
Vector
7.5
3.1
—
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-252
Unchecked Return Value
CWE-755
Improper Handling of Exceptional Conditions
Credits
1seal
(finder)
paberr
(analyst)
Affected packages (1)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
rust
nimiq-primitives <= 0.2.0
—
—
cvelogic
Threat Intelligence