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OpenAdvisories
Unscored USN-7956-1 0 CVEs

google-guest-agent vulnerability

Published Jan 13, 2026 · Updated Jun 25, 2026

Summary

Jakub Ciolek discovered that the Go Cryptography module included in
Google Guest Agent did not validate GSSAPI authentication requests during
SSH operations. An attacker could possibly use this issue to cause a
denial of service.

Fixed packages 6

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS google-guest-agent 20250116.00-0ubuntu1~22.04.2
Ubuntu · 24.04 LTS 24.04:LTS google-guest-agent 20250116.00-0ubuntu1~24.04.3
Ubuntu · 25.10 google-guest-agent 20250506.01-0ubuntu1.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS google-guest-agent 20240716.00-0ubuntu1~16.04.0+esm2
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS google-guest-agent 20241011.01-0ubuntu1~18.04.0+esm2
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS google-guest-agent 20250116.00-0ubuntu1~20.04.0+esm2

References

  • report
    https://ubuntu.com/security/CVE-2025-58181