What’s Vulnerable › Vulnerabilities

CVE-2020-1340

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-09 · updated 2026-06-17
• Weakness: CWE-79

Description

A spoofing vulnerability exists when the NuGetGallery does not properly sanitize input on package metadata values, aka 'NuGetGallery Spoofing Vulnerability'.

Affected products

• NuGetGallery: before 2020.06.09 — fixed in 2020.06.09
• NuGetGallery: all versions

How to fix

Upgrade to a fixed version: NuGetGallery 2020.06.09. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1340
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1340

Get alerted when CVE-2020-1340 or the next vulnerability affects your stack