GHSA-pf4j-pf3w-95f9 · 深刻度: medium · エコシステム: rust — nimiq-transaction: UpdateValidator transactions allows voting key change without proof-of-knowledge
nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proof_of_knowledge`. this skips the proof-of-knowledge requirement that is needed to prevent BLS rogue-key attacks when public keys are aggregated. Because tendermint macro block justification verification aggregates validator voting keys and verifies a single aggregated BLS signature against that aggregate public key, a rogue-key voting key in the validator set can allow an attacker to forge a quorum-looking justification while only producing a single signature. While the impact is critical, the exploitability is low: The voting keys are fixed for the epoch, so the attacker would need to know the next epoch validator set (chosen through VRF), which is unlikely. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.
総合評価: CVE-2026-34068 は低リスク(30.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.20%、10 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.01% | 0.20% | +0.19% |
| 2 | 2026-04-23 | — | 0.01% | — |
EPSS の全履歴 (全 2 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.8 | 3.1 | MEDIUM |
|
2.2 | 4.0 | [email protected] |
GHSA-pf4j-pf3w-95f9 · 深刻度: medium · エコシステム: rust — nimiq-transaction: UpdateValidator transactions allows voting key change without proof-of-knowledge
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| nimiq | nimiq_proof-of-stake | < 1.3.0 | cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:* |
| URL | タグ |
|---|---|
| https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f | Patch |
| https://github.com/nimiq/core-rs-albatross/pull/3654 | Issue Tracking Patch |
| https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 | Release Notes |
| https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-pf4j-pf3w-95f9 | Patch Vendor Advisory |