CVE-2026-39827 (Medium) detected in golang.org/x/crypto-v0.49.0

[mend-bolt-for-github]

CVE-2026-39827 - Medium Severity Vulnerability

Vulnerable Library - golang.org/x/crypto-v0.49.0

Library home page: https://proxy.golang.org/golang.org/x/crypto/@⁠v/v0.49.0.zip

Path to dependency file: /engine/go.mod

Path to vulnerable library: /home/wss-scanner/go/pkg/mod/cache/download/golang.org/x/crypto/@⁠v/v0.49.0.mod

Dependency Hierarchy:

• ❌ golang.org/x/crypto-v0.49.0 (Vulnerable Library)

Found in base branch: master

Vulnerability Details

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection.

Publish Date: 2026-05-22

URL: CVE-2026-39827

CVSS 3 Score Details (6.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://pkg.go.dev/vuln/GO-2026-5016

Release Date: 2026-05-22

Fix Resolution: golang.org/x/crypto - v0.52.0,https://github.com/golang/crypto.git - v0.52.0

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