CVE-2020-6638
Grin Insufficient Validation
7.5 HighFix available
Grin through 2.1.1 has Insufficient Validation.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
1.32%Up 0.7 points since Apr 14, 2021
What each source reports
NVD Score used
Grin through 2.1.1 has Insufficient Validation.
- Record
CVE-2020-6638- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Grin through 2.1.1 has Insufficient Validation.
- Record
CVE-2020-6638- Updated
- 2026-11-02
EUVDEUVD-2022-3074 No score
Grin through 2.1.1 has Insufficient Validation.
- Record
EUVD-2022-3074- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7w6p-rwhg-7h3g
Grin Insufficient Validation
Grin through 2.1.1 has Insufficient Validation.
- Record
GHSA-7w6p-rwhg-7h3g- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
Grin through 2.1.1 has Insufficient Validation.
- Record
CVE-2020-6638- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-7w6p-rwhg-7h3g
Grin Insufficient Validation
Grin through 2.1.1 has Insufficient Validation.
- Record
GHSA-7w6p-rwhg-7h3g- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
grincrates.io |
before 3.0.0 | 3.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-6638 is a high vulnerability (CVSS 7.5) in Grin, published January 21, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.32%, the 71st percentile. Fixed in grin 3.0.0.