ZcashFoundation Zebra before 6.1.0 contains a resource exhaustion vulnerability that allows unauthenticated peers to degrade block processing by pushing transactions with invalid Orchard proofs without being misbehavior-scored. Attackers can repeatedly push invalid proofs into the shared halo2 batch verifier, forcing honest block proofs onto the slow individual-verification path and slowing block processing roughly sevenfold.
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History
Fri, 02 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ZcashFoundation Zebra before 6.1.0 contains a resource exhaustion vulnerability that allows unauthenticated peers to degrade block processing by pushing transactions with invalid Orchard proofs without being misbehavior-scored. Attackers can repeatedly push invalid proofs into the shared halo2 batch verifier, forcing honest block proofs onto the slow individual-verification path and slowing block processing roughly sevenfold. | |
| Title | Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions | |
| First Time appeared |
Zfnd
Zfnd zebra |
|
| Weaknesses | CWE-405 | |
| CPEs | cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zfnd
Zfnd zebra |
|
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-02T11:38:06.504Z
Reserved: 2026-10-02T00:46:23.830Z
Link: CVE-2026-104425
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