GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN…
Priority MEDIUM 45CWE-441Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00094 0th percentileScored 2026-11-07
Fix Fixed GrapheneOS (GrapheneOS): 2026050400
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GrapheneOS | GrapheneOS | before 2026050400 | 2026050400 | Patch available | CNA |
- GrapheneOS VendorGrapheneOS Affected before 2026050400 Fixed in 2026050400 Patch available CNA
Remediation
- Fix · CNA GrapheneOS (GrapheneOS) Fixed in 2026050400
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45182
- 2026-10-03 Alias added: GHSA-47rq-88xv-gpxv
References
Sources
- CVE-2026-45182 · CVE Program
- CVE-2026-45182 · NVD
- FIRST EPSS
- GHSA-47rq-88xv-gpxv · GitHub Advisory Database · CC BY 4.0
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