CVE-2020-7718
Prototype Pollution
All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
- Record
CVE-2020-7718- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-1150
All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
- Record
EUVD-2021-1150- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pgmg-gf5p-54j8
Prototype Pollution in gammautils
All versions of package gammautils up to and including version 0.0.81 are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
- Record
GHSA-pgmg-gf5p-54j8- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
- Record
CVE-2020-7718- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-pgmg-gf5p-54j8
Prototype Pollution in gammautils
All versions of package gammautils up to and including version 0.0.81 are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
- Record
GHSA-pgmg-gf5p-54j8- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gammautilsnpm |
through 0.0.81 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7718 is a critical vulnerability (CVSS 9.8) in Gammautils Project Gammautils, published September 1, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.92%, the 79th percentile. No source names a fixed version.