CVE-2026-34065

nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals

State
Published
Severity
7.5 High
Published
Apr 22, 2026
Updated
Apr 23, 2026
Reserved
Mar 25, 2026

Read the record on cve.org

Description

nimiq-primitives contains primitives (e.g., block, account, transaction) to be used in Nimiq's Rust implementation. Prior to version 1.3.0, 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. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

  • CWE-252 Unchecked Return Value
  • CWE-755 Improper Handling of Exceptional Conditions

Affected Products

ProductVersions
nimiq-primitivesnimiq
  • < 1.3.0Affected

References

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