CVE-2018-3756 impacts Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1, allowing a transaction and block signature verification bypass. This critical vulnerability (CVSS 7.5 High) enables a single malicious node to sign transactions and/or blocks multiple times with unique nonces, leading other validating nodes to accept these as legitimate, separate signatures. The attack requires no user interaction and has a high impact on integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0CPE matchmatch criteria | cpe:2.3:a:hyperledger:iroha:1.0:beta:*:*:*:*:*:* | ||
1.0.0CPE matchmatch criteria | cpe:2.3:a:hyperledger:iroha:1.0.0:beta1:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.