Secuno
ENNL
Book demo

CVE-2026-34163

Fastgpt server-side request forgery (SSRF)

7.7 HIGHPublic exploitEPSS 0.42%
  1. Published31 Mar 2026

Description

FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, FastGPT's MCP (Model Context Protocol) tools endpoints (/api/core/app/mcpTools/getTools and /api/core/app/mcpTools/runTool) accept a user-supplied URL parameter and make server-side HTTP requests to it without validating whether the URL points to an internal/private network address. Although the application has a dedicated isInternalAddress() function for SSRF protection (used in other endpoints like the HTTP workflow node), the MCP tools endpoints do not call this function. An authenticated attacker can use these endpoints to scan internal networks, access cloud metadata services, and interact with internal services such as MongoDB and Redis. This issue has been patched in version 4.14.9.5.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

Fastgpt< 4.14.9.5

Remediation

Fixed in
Fastgpt≥ 4.14.9.5

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-8911110.0
The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting…
CVE-2026-571438.8
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.62,…
CVE-2026-1092388.6
Crawl4AI 0.7.0 before 0.9.4 contains a server-side request forgery vulnerability that…
CVE-2026-859528.5
Affected Linux-based Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x…
CVE-2026-859518.5
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7…
CVE-2026-694359.6
Missing authorization in Azure SRE Agent allows an authorized attacker to elevate…

Frequently asked

Is CVE-2026-34163 being actively exploited?

CVE-2026-34163 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.42%.

How severe is CVE-2026-34163?

CVE-2026-34163 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.42% probability of exploitation.

Which products are affected by CVE-2026-34163?

Affected products include Fastgpt.

How do I fix CVE-2026-34163?

Upgrade affected software to a fixed version, for example Fastgpt 4.14.9.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34163 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.