CVE-2026-35679
Deferred Deferred - Pending Action
Proof Verification Bypass in Zcashd Sprout Pool Risks Fund Drain

Publication date: 2026-04-05

Last updated on: 2026-05-19

Assigner: MITRE

Description
Zcash zcashd before 6.12.0 allows invalid transactions to be accepted under certain conditions, which potentially could have resulted in the draining of user funds from the Sprout pool. It was sometimes not verifying Sprout proofs.
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Meta Information
Published
2026-04-05
Last Modified
2026-05-19
Generated
2026-06-16
AI Q&A
2026-04-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-35679
EUVD
EUVD-2026-19126
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
zcash zcashd to 6.12.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-358 The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.
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Executive Summary

This vulnerability affects Zcash zcashd versions before 6.12.0. It allows invalid transactions to be accepted under certain conditions because the software sometimes did not verify Sprout proofs properly.

As a result, this flaw could potentially lead to the draining of user funds from the Sprout pool.

Impact Analysis

The vulnerability could impact users by allowing invalid transactions to be accepted, which might result in the loss of funds from the Sprout pool.

Since the issue involves improper verification of Sprout proofs, it could lead to unauthorized draining of user funds.

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