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TI-2020-09951 Aliases CVE-2020-12439GHSA-6x52-88cq-55q5

Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.

Priority LOW 27CWE-404Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-404.

Summary

Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.

Why it matters now

EPSS 0.01551 75th percentileScored 2026-11-07
Fix Fixed grin (crates.io): 3.1.0

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
—grin (crates.io)before 3.1.03.1.0Patch availableGHSA-6x52-88cq-55q5
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • grin (crates.io) Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available GHSA-6x52-88cq-55q5

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:grin:grin:*:*:*:*:*:*:*:*before 3.1.0VulnerableGrin
  • cpe:2.3:a:grin:grin:*:*:*:*:*:*:*:* Versions before 3.1.0 Vulnerable ·Grin

Remediation

  • Fix · GHSA-6x52-88cq-55q5 grin (crates.io) Fixed in 3.1.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-12439
  2. 2026-10-03 Alias added: GHSA-6x52-88cq-55q5

References

Patch 2

Advisory 2

  • TI-2019-06653 util/src/zip.rs in Grin before 1.0.2 mishandles suspicious files. CVSS 3.1CRITICAL 9.8
  • TI-2020-05460 Grin through 2.1.1 has Insufficient Validation. CVSS 3.1HIGH 7.5
  • TI-2020-12516 Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble. CVSS 3.1HIGH 7.5

Sources

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