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4 vulnerabilities found for zebra by zfnd
CVE-2026-34377 (GCVE-0-2026-34377)
Vulnerability from nvd – Published: 2026-03-31 14:05 – Updated: 2026-03-31 17:18
VLAI
Title
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, a miner could cause vulnerable Zebra nodes to accept an invalid block, leading to a consensus split from the rest of the Zcash network. This would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/zebra/releases… | x_refsource_MISC |
| https://zfnd.org/zebra-4-3-0-critical-security-fi… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
< 4.3.0
|
|
| ZcashFoundation | zebra-consensus |
Affected:
< 5.0.1
|
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CVE-2026-34202 (GCVE-0-2026-34202)
Vulnerability from nvd – Published: 2026-03-31 14:02 – Updated: 2026-03-31 17:17
VLAI
Title
Zebra node crash — V5 transaction hash panic (P2P reachable)
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/zebra/releases… | x_refsource_MISC |
| https://zfnd.org/zebra-4-3-0-critical-security-fi… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
< 4.3.0
|
|
| ZcashFoundation | zebra-chain |
Affected:
< 6.0.1
|
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CVE-2026-34377 (GCVE-0-2026-34377)
Vulnerability from cvelistv5 – Published: 2026-03-31 14:05 – Updated: 2026-03-31 17:18
VLAI
Title
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, a miner could cause vulnerable Zebra nodes to accept an invalid block, leading to a consensus split from the rest of the Zcash network. This would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/zebra/releases… | x_refsource_MISC |
| https://zfnd.org/zebra-4-3-0-critical-security-fi… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
< 4.3.0
|
|
| ZcashFoundation | zebra-consensus |
Affected:
< 5.0.1
|
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CVE-2026-34202 (GCVE-0-2026-34202)
Vulnerability from cvelistv5 – Published: 2026-03-31 14:02 – Updated: 2026-03-31 17:17
VLAI
Title
Zebra node crash — V5 transaction hash panic (P2P reachable)
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | x_refsource_CONFIRM |
| https://github.com/ZcashFoundation/zebra/releases… | x_refsource_MISC |
| https://zfnd.org/zebra-4-3-0-critical-security-fi… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
< 4.3.0
|
|
| ZcashFoundation | zebra-chain |
Affected:
< 6.0.1
|
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],
"source": {
"advisory": "GHSA-qp6f-w4r3-h8wg",
"discovery": "UNKNOWN"
},
"title": "Zebra node crash \u2014 V5 transaction hash panic (P2P reachable)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-34202",
"datePublished": "2026-03-31T14:02:56.454Z",
"dateReserved": "2026-03-26T15:57:52.323Z",
"dateUpdated": "2026-03-31T17:17:30.860Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}