Improper Verification of Cryptographic Signature Affecting zebra-consensus package, versions <5.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-ZEBRACONSENSUS-15917141
- published6 Apr 2026
- disclosed30 Mar 2026
- creditUnknown
Introduced: 30 Mar 2026
NewCVE-2026-34377 (opens in a new tab)How to fix?
Upgrade zebra-consensus to version 5.0.1 or higher.
Overview
zebra-consensus is an Implementation of Zcash consensus checks
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to improper verification in the find_verified_unmined_tx function. An attacker can cause affected nodes to accept invalid block data and become isolated from the main network by submitting a block containing a transaction with a valid txid but invalid authorization data, leading to a consensus split.