EUVD-2026-36684
GHSA-vg9f-q4xh-62r4
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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-reachable SSRF requiring low-privilege authentication; low C and I impact from internal resource access; no direct availability impact.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
3DescriptionCVE.org
A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function of the component utcp-gql/utcp-websocket. Performing a manipulation results in server-side request forgery. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Server-side request forgery in python-utcp 1.1.0's utcp-gql and utcp-websocket components allows remote low-privileged attackers to coerce the server into issuing arbitrary outbound HTTP requests, potentially reaching internal infrastructure not exposed to the public internet. The affected library implements the universal-tool-calling-protocol and the vulnerable code paths reside in its GraphQL and WebSocket transport handlers. …
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 | Low-privilege authenticated access is required to invoke the vulnerable utcp-gql or utcp-websocket transport endpoints, as indicated by PR:L in the CVSS 4.0 vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) scores 5.3, placing this in the medium severity band. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-privileged authenticated access to an application embedding python-utcp crafts a malicious tool-calling request targeting the utcp-gql or utcp-websocket endpoint, supplying a URL pointing to an internal cloud metadata service such as http://169.254.169.254/latest/meta-data/. The python-utcp library processes the request without validating the destination and issues the outbound connection from the server, returning cloud credentials or internal service data to the attacker. … |
| Remediation | No vendor-released patch has been identified at time of analysis; the vendor did not respond to the coordinated disclosure. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More from same product – last 7 days
Unauthenticated remote attackers can invoke MCP tool handlers and exfiltrate the operator's long-lived Meta Graph API ac
Remote code execution in Splunk Enterprise, Splunk Cloud Platform, and the Splunk Secure Gateway app allows a low-privil
Unauthenticated remote code execution in Crawl4AI versions <= 0.8.6 allows attackers to escape the AST-based sandbox in
Remote code execution in Langflow versions through 1.9.1 allows unauthenticated attackers to execute arbitrary Python co
Authenticated remote code execution in ChromaDB Python project versions 0.4.17 and later enables attackers holding the U
Share
External POC / Exploit Code
Leaving vuln.today