CVE-2019-11636
UnknownEPSS 2.18%
Last modified
CVE-2019-11636 is a vulnerability of currently unknown severity. Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.. EPSS estimates a 2.18% chance of exploitation in the next 30 days.
Description
Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Z.Cash | Zcash | >= 2.0.0, <= 2.0.4 | — |
| Z.Cash | Zcash | 2.0.5 | Rc1 |
References
- https://github.com/zcash/zcash/issues/3955Third Party Advisory
- https://twitter.com/dukeleto/status/1120467430118232066Third Party Advisory
- https://github.com/zcash/zcash/issues/3955Third Party Advisory
- https://twitter.com/dukeleto/status/1120467430118232066Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-11636?
Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.
How severe is CVE-2019-11636?
Severity scoring for CVE-2019-11636 is pending analysis. The EPSS model estimates a 2.18% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11636?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2019-11636?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST