Vulnary
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Critical· 9.8official fix available

CVE-2026-42302

FastGPT versions 4.14.10 through 4.14.12 contain an unauthenticated remote code execution flaw in the agent‑sandbox component. The sandbox’s code‑server is started with authentication disabled and bound to all interfaces, allowing anyone with network access to port 8080 to take full control. The issue is fixed in FastGPT version 4.14.13.

publishedMay 8, 2026
last modifiedJul 24, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
50th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 25, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

FastGPT users running versions 4.14.10 to before 4.14.13.

02

Real-world impact

An attacker can execute arbitrary code on the sandbox host, leading to complete compromise of the affected system.

03

Why this severity

CVSS 3.1 base score 9.8 (Critical) due to network‑adjacent, low‑complexity attack requiring no privileges or user interaction, with high impact on confidentiality, integrity, and availability.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade FastGPT to version 4.14.13 or later.

NVD-referenced vendor advisory

05

Timeline

  1. May 8, 2026 · May 8, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 24, 2026 · 11d ago
    Advisory updated
    The NVD record was last revised.
  3. Jul 26, 2026 · 10d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
CVE-2026-42302: FastGPT versions 4.14.10 through 4.14.12 contain an unauthenticated re · Vulnary