CVE-2026-45182 json
GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClo…
published 2026-05-09 6 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-28944
- cvss
- 2.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 0%
- public exploits
- 0
- none known
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.
Patch / fix
- GrapheneOS GrapheneOS 2026050400
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- lowlevel.fun https://lowlevel.fun/posts/tiny-udp-cannon-android-vpn-bypass/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.2 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N |
Affected products
- GrapheneOS GrapheneOS
Classification
- Weakness
-
- CWE-441 Unintended Proxy or Intermediary
References
Sources
- CVE List CVE-2026-45182
- NVD CVE-2026-45182
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.