CVE-2026-45182: GrapheneOS · Confused Deputy
Affects GrapheneOSSource GCVE Database
Not known to be exploited · CVSS 2.2 Low.
Data as of 27 Oct 2026, 00:59 UTC
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 9 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GrapheneOS GrapheneOS | Affected
| Fixed in– |
AI-suggested
Since the vulnerability affects versions before 2026050400, upgrading to version 2026050400 or later (once available) is recommended. Until then, users should be aware of the privacy risk when using the affected VPN settings. Monitor vendor advisories for official fixes.
Description
CVE-2026-45182 is a low-severity vulnerability in GrapheneOS before version 2026050400 that allows an attacker to discover the real IP address of a VPN user. This occurs due to a registerQuicConnectionClosePayload optimization that lets an application cause system_server to transmit UDP traffic on its behalf. The issue arises when the "Block connections without VPN" and "Always-on VPN" settings are enabled.