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Fastgpt CVE-2025-49131

| EUVDEUVD-2025-17467 MEDIUM
Incorrect Permission Assignment for Critical Resource (CWE-732)
2025-06-09 security-advisories@github.com
RCE Python Fastgpt
6.3
CVSS 3.1 · GitHub Advisory
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Vulnerability Assessment

Weakness
CWE
CWE-732
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V13 - Configuration Permission assignment review
Impact

CVSS score of 6.3 (MEDIUM).
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 14, 2026

FastGPT is an open-source project that provides a platform for building, deploying, and operating AI-driven workflows and conversational agents. The Sandbox container (fastgpt-sandbox) is a specialized, isolated environment used by FastGPT to safely execute user-submitted or dynamically generated code in isolation. The sandbox before version 4.9.11 has insufficient isolation and inadequate restrictions on code execution by allowing overly permissive syscalls, which allows attackers to escape the intended sandbox boundaries. Attackers could exploit this to read and overwrite arbitrary files and bypass Python module import restrictions. This is patched in version 4.9.11 by restricting the allowed system calls to a safer subset and additional descriptive error messaging.

Earlier versions of this analysis (1)
v1 Mar 14, 2026 - 19:21 CVSS 6.3

RemediationAI

A vendor patch is available. Apply it as soon as possible and verify the fix.

Affected VersionsENISA

FastGPT < 4.9.11

Affected Packages

euvd fastgpt fix: 4.9.11

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Technical ContextAI · show details

This vulnerability is classified as Incorrect Permission Assignment for Critical Resource (CWE-732).

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

GitHub Advisory PRIMARY 6.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
Patch released
Mar 14, 2026 - 19:21 nvd
Patch available
CVE Published
Jun 09, 2025 - 13:15 nvd
MEDIUM 6.3

Executive ViewAI

Why It Matters

Organizations using FastGPT should be aware of moderate risk from CVE-2025-49131, a incorrect permissions vulnerability rated CVSS 6.3. Attackers could gain access beyond their authorized level. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: manually tighten permissions on affected resources.

Threat Intelligence Overview

EPSS Score
0.3%
Top 50% exploitable
Data Quality
5 sources
Confidence: Medium
EUVD NVD CVE.org EPSS GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

More in Fastgpt

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FastGPT is an AI Agent building platform. Prior to version 4.9.12, the LastRoute Parameter on login page is vulnerable t
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Unauthenticated HTTP proxy abuse in FastGPT (AI Agent platform) prior to v4.14.9.5 allows remote attackers to relay arbi
CVE-2026-42302 CRITICAL
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Remote code execution in FastGPT's agent-sandbox component (versions 4.14.10 through 4.14.12) lets any network-adjacent,
CVE-2026-40351 CRITICAL
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NoSQL injection in FastGPT <4.14.9.5 password authentication allows unauthenticated remote attackers to bypass login con
CVE-2026-68929 CRITICAL
9.3 Aug 27

Channel hijack and denial of service in FastGPT (labring/FastGPT) before 4.15.2 lets an unauthenticated remote attacker

CVE-2026-50562 CRITICAL
9.3 Jul 15

GitHub Actions artifact-poisoning (pwn request) in labring/FastGPT allows an external attacker who opens a pull request

CVE-2026-61684 HIGH
8.8 Jul 15

Authentication bypass in FastGPT 4.15.0-beta4 lets unauthenticated remote attackers forge JWTs and access internal plugi
CVE-2026-40352 HIGH
8.8 Apr 17

NoSQL injection in FastGPT versions before 4.14.9.5 allows authenticated attackers to bypass password verification on th
CVE-2026-33075 HIGH
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FastGPT versions 4.14.8.3 and below contain a critical arbitrary code execution vulnerability in the fastgpt-preview-ima
CVE-2026-55418 HIGH
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Cross-tenant file disclosure in FastGPT prior to v4.15.0-beta5 allows an attacker to read another team's stored files by
CVE-2026-61644 HIGH
7.7 Jul 15

Cross-tenant data disclosure in FastGPT 4.14.17 through 4.15.0-beta5 lets a low-privileged tenant user read another tena
CVE-2026-54607 HIGH
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Server-side request forgery in FastGPT before 4.15.0-beta4 lets an authenticated team member abuse the HTTP-tool OpenAPI

Same weakness CWE-732 – Incorrect Permission Assignment for Critical Resource

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CVE-2020-11855 HIGH POC
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CVE-2020-10883 HIGH POC
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Same technique RCE

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CVE-2022-47966 CRITICAL POC
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CVE-2012-4681 CRITICAL POC
9.8
CVE-2023-3519 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2016-4117 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8

References

Advisories & patches
PATCH https://github.com/labring/FastGPT/commit/bb810a43a1c70683fab7f5fe993771e930a94426 ADVISORY https://github.com/labring/FastGPT/security/advisories/GHSA-f3pf-r3g7-g895 REF https://github.com/labring/FastGPT/pkgs/container/fastgpt-sandbox REF https://github.com/labring/FastGPT/pull/4958 REF https://github.com/labring/FastGPT/releases/tag/v4.9.11

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