CVE-2026-42345

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts blocks cloud metadata endpoints using a fullUrl.startsWith check against a hardcoded list. This check can be bypassed using at least 7 different...

EUVD-2026-28855

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts blocks cloud metadata endpoints using a fullUrl.startsWith check against a hardcoded list. This check can be bypassed using at least 7 different...

CVE-2026-42345 FastGPT: Cloud metadata endpoint SSRF protection bypass via port specification, IPv6 mapping, hex/decimal IP encoding, and trailing dot

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts blocks cloud metadata endpoints using a fullUrl.startsWith check against a hardcoded list. This check can be bypassed using at least 7 different...

CVE-2026-42345 FastGPT: Cloud metadata endpoint SSRF protection bypass via port specification, IPv6 mapping, hex/decimal IP encoding, and trailing dot

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts blocks cloud metadata endpoints using a fullUrl.startsWith check against a hardcoded list. This check can be bypassed using at least 7 different...

CVE-2026-42344 FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress allows SSRF on all protected endpoints

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

CVE-2026-42344

FastGPT before 4.14.11 is vulnerable in isInternalAddress() (packages/service/common/system/utils.ts) to DNS rebinding TOCTOU, where DNS resolution for private-range checks occurs separately from the subsequent HTTP request. An attacker could exploit the window between validation and fetch to byp...

CVE-2026-42344

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

CVE-2026-42344 FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress allows SSRF on all protected endpoints

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

EUVD-2026-28854

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

CVE-2026-42343

CVE-2026-42343 (FastGPT) affects FastGPT’s code-sandbox in versions ≤ 4.14.13, due to insufficient resource isolation. The system relies on an application-level soft limit (500 ms polling) for memory management and lacks OS-level constraints (cgroups/kernel namespaces). This enables time-window b...

CVE-2026-42343 FastGPT: Uncontrolled Resource Consumption leading to Sandbox Exhaustion

FastGPT is an AI Agent building platform. In versions 4.14.13 and prior, the code-sandbox component suffers from insufficient resource isolation and uncontrolled resource consumption. The service relies solely on an application-level soft limit a 500ms polling interval for memory management and...

CVE-2026-42343 FastGPT: Uncontrolled Resource Consumption leading to Sandbox Exhaustion

FastGPT is an AI Agent building platform. In versions 4.14.13 and prior, the code-sandbox component suffers from insufficient resource isolation and uncontrolled resource consumption. The service relies solely on an application-level soft limit a 500ms polling interval for memory management and...

CVE-2026-42343 FastGPT: Uncontrolled Resource Consumption leading to Sandbox Exhaustion

FastGPT is an AI Agent building platform. In versions 4.14.13 and prior, the code-sandbox component suffers from insufficient resource isolation and uncontrolled resource consumption. The service relies solely on an application-level soft limit a 500ms polling interval for memory management and...

CVE-2026-42302 FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox

FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution RCE. The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to...

CVE-2026-42302

FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution RCE. The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to...

CVE-2026-42302 FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox

FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution RCE. The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to...

EUVD-2026-28850

FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution RCE. The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to...

CVE-2026-42302

FastGPT: agent-sandbox vulnerable in 4.14.10–4.14.12 due to entrypoint.sh launching code-server with --auth none and binding to 0.0.0.0:8080, enabling unauthenticated remote code execution and full sandbox access. The issue is mitigated in version 4.14.13. Practical impact is unauthenticated netw...

PT-2026-39206

Name of the Vulnerable Software and Affected Versions FastGPT versions prior to 4.14.13 Description The code-sandbox component in the AI Agent building platform has insufficient resource isolation and uncontrolled resource consumption. The service uses an application-level soft limit with a 500ms...

FastGPT 代码问题漏洞

FastGPT is an open-source knowledge base question-answering system based on large language models developed by Labring. Versions of FastGPT prior to 4.14.17 contained code vulnerabilities. These vulnerabilities stemmed from inconsistent SSRF protections in the handling of MCP tool URLs, which...