What is CVE-2026-45182?

CVE-2026-45182 is a low-severity vulnerability in Grapheneos, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 2.2/10. Published 2026-05-09.

How severe is CVE-2026-45182?

Low severity. CVSS v3 base score is 2.2 out of 10.

Vulnerability in Grapheneos

CVE-2026-45182

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 beh…

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.2 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Grapheneos — versions 0

Weakness classification (CWE)

CWE-441 — Unintended Proxy or Intermediary (Confused Deputy)

References

cve@mitre.org
cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-45182?: CVE-2026-45182 is a low-severity vulnerability in Grapheneos, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 2.2/10. Published 2026-05-09.
How severe is CVE-2026-45182?: Low severity. CVSS v3 base score is 2.2 out of 10.