PatchTheCVECVE-2020-7718: All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functio
CVE-2020-7718 is a critical-severity flaw (CVSS 9.8) affecting gammautils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.9% (top 20%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2020-09-01 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-7718?
gammautils: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-7718 being exploited?
CVE-2020-7718 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-7718 affect?
CVE-2020-7718 affects gammautils. Severity is critical (CVSS 9.8). All versions of package gammautils are vulnerable to Prototype Pollution via the deepSet and deepMerge functions.
How urgent is CVE-2020-7718?
Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action