PureVPN client applications on Linux through September 2025 allow IPv6 traffic to leak outside the VPN tunnel upon network events such as Wi-Fi reconnect or system resume. In the CLI client, the VPN auto-reconnects and claims to be connected, but IPv6 traffic is no longer routed or blocked. In the GUI client, the IPv6 connection remains functional after disconnection until the user clicks Reconnect. In both cases, the real IPv6 address is exposed to external services, violating user privacy and defeating the advertised IPv6 leak protection. This affects CLI 2.0.1 and GUI 2.10.0.
Metrics
Affected Vendors & Products
References
Link | Providers |
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https://anagogistis.com/posts/purevpn-ipv6-leak/ |
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History
Fri, 19 Sep 2025 14:15:00 +0000
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ssvc
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Fri, 19 Sep 2025 09:45:00 +0000
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First Time appeared |
Linux
Linux linux Purevpn Purevpn purevpn |
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Vendors & Products |
Linux
Linux linux Purevpn Purevpn purevpn |
Thu, 18 Sep 2025 23:15:00 +0000
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Description | PureVPN client applications on Linux through September 2025 allow IPv6 traffic to leak outside the VPN tunnel upon network events such as Wi-Fi reconnect or system resume. In the CLI client, the VPN auto-reconnects and claims to be connected, but IPv6 traffic is no longer routed or blocked. In the GUI client, the IPv6 connection remains functional after disconnection until the user clicks Reconnect. In both cases, the real IPv6 address is exposed to external services, violating user privacy and defeating the advertised IPv6 leak protection. This affects CLI 2.0.1 and GUI 2.10.0. | |
Weaknesses | CWE-669 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: mitre
Published: 2025-09-18T00:00:00.000Z
Updated: 2025-09-19T13:08:52.061Z
Reserved: 2025-09-18T00:00:00.000Z
Link: CVE-2025-59691

Updated: 2025-09-19T13:08:47.118Z

Status : Awaiting Analysis
Published: 2025-09-18T23:15:34.310
Modified: 2025-09-19T16:00:27.847
Link: CVE-2025-59691

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