CVE-2026-35679: CWE-358 Improperly Implemented Security Check for Standard in Zcash zcashd
A vulnerability in Zcash zcashd versions before 6. 12. 0 allows acceptance of invalid transactions due to improper verification of Sprout proofs. This flaw could potentially lead to the draining of user funds from the Sprout pool. The issue is classified as CWE-358, indicating an improperly implemented security check. The CVSS score is 3. 5, reflecting a low severity with limited impact and exploitation complexity. No official patch or remediation guidance is currently confirmed from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-35679 is a vulnerability in Zcash's zcashd client prior to version 6.12.0 where the software sometimes fails to verify Sprout proofs correctly. This improper security check (CWE-358) allows invalid transactions to be accepted under certain conditions, which could potentially result in unauthorized draining of funds from the Sprout pool. The vulnerability has a CVSS 3.1 base score of 3.5, indicating low severity due to network attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to integrity loss without confidentiality or availability impact. No patch or official remediation level has been published by the vendor as of the data provided.
Potential Impact
The vulnerability could allow invalid transactions to be accepted, potentially leading to the unauthorized draining of user funds from the Sprout pool in Zcash. However, the impact is limited to integrity loss without affecting confidentiality or availability. The low CVSS score reflects that exploitation requires high complexity and low privileges, and no known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor official Zcash communications for updates. No specific mitigations are provided in the available data.
CVE-2026-35679: CWE-358 Improperly Implemented Security Check for Standard in Zcash zcashd
Description
A vulnerability in Zcash zcashd versions before 6. 12. 0 allows acceptance of invalid transactions due to improper verification of Sprout proofs. This flaw could potentially lead to the draining of user funds from the Sprout pool. The issue is classified as CWE-358, indicating an improperly implemented security check. The CVSS score is 3. 5, reflecting a low severity with limited impact and exploitation complexity. No official patch or remediation guidance is currently confirmed from the vendor. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-35679 is a vulnerability in Zcash's zcashd client prior to version 6.12.0 where the software sometimes fails to verify Sprout proofs correctly. This improper security check (CWE-358) allows invalid transactions to be accepted under certain conditions, which could potentially result in unauthorized draining of funds from the Sprout pool. The vulnerability has a CVSS 3.1 base score of 3.5, indicating low severity due to network attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to integrity loss without confidentiality or availability impact. No patch or official remediation level has been published by the vendor as of the data provided.
Potential Impact
The vulnerability could allow invalid transactions to be accepted, potentially leading to the unauthorized draining of user funds from the Sprout pool in Zcash. However, the impact is limited to integrity loss without affecting confidentiality or availability. The low CVSS score reflects that exploitation requires high complexity and low privileges, and no known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor official Zcash communications for updates. No specific mitigations are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-05T21:26:58.043Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d2d4760a160ebd9210510c
Added to database: 4/5/2026, 9:30:30 PM
Last enriched: 4/13/2026, 3:17:57 PM
Last updated: 5/20/2026, 9:40:39 PM
Views: 103
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