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CVE-2026-42302 is an unauthenticated remote code execution vulnerability in the agent-sandbox component of FastGPT affecting versions 4.14.10 through before 4.14.13. The issue is caused by the startup script entrypoint.sh launching code-server with the --auth none flag while binding the service to all network interfaces on 0.0.0.0:8080. As a result, the sandbox’s code-server instance is exposed without authentication, allowing any remote party with network reachability to access and control the sandbox environment. The advisory states that successful exploitation yields full control of the sandbox environment.
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What an attacker gets, and what they’ve been doing with it.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting the FastGPT agent sandbox that was targeted using CVE-labeled exploit traffic.
An unauthenticated remote code execution vulnerability in the FastGPT agent-sandbox component caused by code-server being started with authentication disabled and exposed on 0.0.0.0:8080, allowing network-accessible takeover of the sandbox environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.