CVE-2020-26160 (High) detected in github.com/dgrijalva/jwt-go-dc14462fd58732591c7fa58cc8496d6824316a82

[mend-bolt-for-github]

CVE-2020-26160 - High Severity Vulnerability

Vulnerable Library - github.com/dgrijalva/jwt-go-dc14462fd58732591c7fa58cc8496d6824316a82

Golang implementation of JSON Web Tokens (JWT)

Dependency Hierarchy:

• github.com/labstack/echo/v4/middleware (Root Library)
  • ❌ github.com/dgrijalva/jwt-go-dc14462fd58732591c7fa58cc8496d6824316a82 (Vulnerable Library)

Found in HEAD commit: 8d66617fe1b0b461f9d8db18671163e72fc71420

Found in base branch: main

Vulnerability Details

jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.

Publish Date: 2020-09-30

URL: CVE-2020-26160

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

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