CVE-2020-15899
Grin insufficient data validation
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
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
What each source reports
NVD Score used
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
CVE-2020-15899- 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-345
- Updated
- 2026-11-02
CVE List No score
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
CVE-2020-15899- Updated
- 2026-11-02
EUVDEUVD-2022-4702 No score
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
EUVD-2022-4702- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p75g-gcv5-42qg
Grin insufficient data validation
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
GHSA-p75g-gcv5-42qg- 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-345
- Updated
- 2026-11-02
OSV
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
CVE-2020-15899- 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-p75g-gcv5-42qg
Grin insufficient data validation
Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.
- Record
GHSA-p75g-gcv5-42qg- 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-345
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
grincrates.io |
3.0.0 up to 4.0.0 | 4.0.0 |
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-2020-15899 is a high vulnerability (CVSS 7.5) in Grin, published July 28, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. Fixed in grin 4.0.0.