GHSA-v9w2-543f-h69m · 深刻度: high · エコシステム: go — Fabric vulnerable to crosslinking transaction attack
Hyperledger Fabric is an open source permissioned distributed ledger framework. Combining two molecules to one another, called "cross-linking" results in a molecule with a chemical formula that is composed of all atoms of the original two molecules. In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block B and a second peer receives a block identical to B but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer. Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a "cross-linked block" (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block. Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks. Users are advised to upgrade. There are no known workarounds for this vulnerability.
総合評価: CVE-2023-46132 は公開エクスプロイトあり(57.7/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.52%、40 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.18% | 0.52% | +0.34% |
| 2 | 2026-03-04 | 0.09% | 0.18% | +0.09% |
| 3 | 2026-03-01 | — | 0.09% | — |
EPSS の全履歴 (全 28 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 |
|---|---|---|---|---|---|---|
| 7.1 | 3.1 | HIGH |
|
2.8 | 4.2 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
GHSA-v9w2-543f-h69m · 深刻度: high · エコシステム: go — Fabric vulnerable to crosslinking transaction attack
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| hyperledger | fabric | >= 1.0.0, < 2.2.14 | cpe:2.3:a:hyperledger:fabric:*:*:*:*:*:*:*:* |
| hyperledger | fabric | >= 2.3.0, < 2.5.5 | cpe:2.3:a:hyperledger:fabric:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/hyperledger/fabric/security/advisories/GHSA-v9w2-543f-h69m | Exploit Mitigation Vendor Advisory |