EUVD-2026-44678Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-accessible redirect abuse requires only authenticated workflow user (PR:L); scope changes (S:C) to internal/metadata systems yield high confidentiality impact (C:H) with no integrity or availability consequence.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4DescriptionCVE.org
FastGPT is a knowledge-based AI application platform. Prior to 4.15.0-beta5, FastGPT's shared SSRF guard validates only the initial request URL before handing the request to axios, and axios follows redirects by default. An authenticated workflow user can configure an HTTP request node to call an attacker-controlled public URL that redirects to cloud metadata, loopback, or internal services that the guard would block on direct request, and the HTTP node returns the response body to the workflow caller. This issue is fixed in version 4.15.0-beta5.
AnalysisAI
SSRF guard bypass in FastGPT prior to 4.15.0-beta5 enables authenticated workflow users to reach cloud metadata endpoints, loopback interfaces, and internal network services that the guard would otherwise block on direct request. The HTTP request workflow node submits the initial URL to the SSRF guard for validation, but then hands the request to axios, which follows HTTP redirects by default without re-triggering the guard - allowing an attacker-controlled redirect server to pivot the request to any internal target. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated FastGPT user account with permission to create or modify HTTP request workflow nodes - anonymous access cannot trigger this vulnerability. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 6.3 (AV:N/AC:L/AT:N/PR:L/UI:N/SC:H/SI:N/SA:N) accurately reflects the attack surface but understates practical impact in cloud deployments. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated FastGPT user with workflow access creates an HTTP request node targeting an attacker-controlled server (e.g., attacker.example.com/redirect) that responds with an HTTP 302 redirect to http://169.254.169.254/latest/meta-data/iam/security-credentials/MyRole. The FastGPT SSRF guard approves the initial external URL, axios transparently follows the redirect to the metadata endpoint, and the JSON credential response - containing an AWS AccessKeyId, SecretAccessKey, and SessionToken - is returned in the workflow execution output accessible to the attacker. … |
| Remediation | Upgrade FastGPT to version 4.15.0-beta5 or later by updating container images to fastgpt-app:v4.15.0-beta5, fastgpt-pro:v4.15.0-beta5, and fastgpt-plugin:v1.0.0-beta5 as documented at https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
FastGPT is an AI Agent building platform. Prior to version 4.9.12, the LastRoute Parameter on login page is vulnerable t
Unauthenticated HTTP proxy abuse in FastGPT (AI Agent platform) prior to v4.14.9.5 allows remote attackers to relay arbi
FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of
NoSQL injection in FastGPT <4.14.9.5 password authentication allows unauthenticated remote attackers to bypass login con
GitHub Actions artifact-poisoning (pwn request) in labring/FastGPT allows an external attacker who opens a pull request
NoSQL injection in FastGPT versions before 4.14.9.5 allows authenticated attackers to bypass password verification on th
Authentication bypass in FastGPT 4.15.0-beta4 lets unauthenticated remote attackers forge JWTs and access internal plugi
Cross-tenant file disclosure in FastGPT prior to v4.15.0-beta5 allows an attacker to read another team's stored files by
Server-side request forgery in FastGPT before 4.15.0-beta4 lets an authenticated team member abuse the HTTP-tool OpenAPI
Server-Side Request Forgery in Labring FastGPT prior to 4.15.0-beta1 lets an authenticated attacker bypass the platform'
FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress() function in packa
Cross-tenant data disclosure in FastGPT 4.14.17 through 4.15.0-beta5 lets a low-privileged tenant user read another tena
Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
View allShare
External POC / Exploit Code
Leaving vuln.today