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TI-2019-08706 Aliases CVE-2019-11636GHSA-p5ww-mxg5-8q8m

Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and…

Priority LOW 37CWE-254Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.0218 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:*2.0.0 – 2.0.4VulnerableZcash
cpe:2.3:a:z.cash:zcash:2.0.5:rc1:*:*:*:*:*:*2.0.5 rc1VulnerableZcash
  • cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:* Versions 2.0.0 – 2.0.4 Vulnerable ·Zcash
  • cpe:2.3:a:z.cash:zcash:2.0.5:rc1:*:*:*:*:*:* Versions 2.0.5 rc1 Vulnerable ·Zcash

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-11636
  2. 2026-10-03 Alias added: GHSA-p5ww-mxg5-8q8m

References

Advisory 2

Other 1

  • TI-2019-05084 Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting… CVSS 3.0HIGH 7.5
  • TI-2019-12629 Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that… CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences