ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
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| ZcashFoundation | zebra | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zcashfoundation | Zebra |
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| Zfnd | Zebra-script |
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| Zfnd | Zebrad |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-gq4h-3grw-2rhv | Zebra has Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.188% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zcashfoundation
Zcashfoundation zebra |
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| Vendors & Products |
Zcashfoundation
Zcashfoundation zebra |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Zfnd
Zfnd zebra-script Zfnd zebrad |
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| CPEs | cpe:2.3:a:zfnd:zebra-script:*:*:*:*:*:rust:*:* cpe:2.3:a:zfnd:zebrad:*:*:*:*:*:rust:*:* |
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| Vendors & Products |
Zfnd
Zfnd zebra-script Zfnd zebrad |
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0 and prior to zebra-script version 6.0.0, the fix for CVE-2026-41583 introduced a separate issue due to insufficient error handling of the case where the sighash type is invalid, during sighash computation. Instead of returning an error, the normal flow would resume, and the input sighash buffer would be left untouched. In scenarios where a previous signature validation could leave a valid sighash in the buffer, an invalid hash-type could be incorrectly accepted, which would create a consensus split between Zebra and zcashd nodes. This issue has been patched in zebrad version 4.4.0 and zebra-script version 6.0.0. | |
| Title | ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer | |
| Weaknesses | CWE-347 | |
| References |
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| Metrics |
cvssV4_0
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