Vulnerability in Google Guest Agent Allows Denial of Service via Crafted Network Traffic

Vulnerability in Google Guest Agent Allows Denial of Service via Crafted Network Traffic

First seen 13 Jan 2026, 15:48 UTC •UbuntuLinuxsecurity •23.9

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A vulnerability in the Google Guest Agent was discovered by Jakub Ciolek, allowing it to crash when receiving specially crafted network traffic. The issue arises from the Go Cryptography module failing to validate GSSAPI authentication requests during SSH operations, potentially enabling denial of service attacks. This affects systems utilizing the Google Guest Agent.

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