CVE-2026-35679: Zcash zcashd · Improperly Implemented Security Check for Standard
Affects Zcash zcashdSource CVE Database V5
Not known to be exploited · CVSS 3.5 Low : upgrade to 6.12.0 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.12.0
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 5 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade zcashd and zcash/zcash to 6.12.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Zcashzcashd | Affected
| Fixed in
|
GitHubzcash/zcashpkg:github/zcash/zcashOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
No specific mitigations are provided in the available data.
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. There are no known exploits in the wild at this time.