CVE-2026-45182 (GCVE-0-2026-45182)

Vulnerability from cvelistv5 – Published: 2026-05-09 22:07 – Updated: 2026-05-11 15:00
VLAI
Summary
GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the "Block connections without VPN" and "Always-on VPN" settings are enabled.
Severity
2.2 (Low)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-11 15:00 UTC
CWE
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2291 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
GrapheneOS GrapheneOS Affected: 0 , < 2026050400 (custom)
guessed Create a notification for this product.
Show details on NVD website
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