Psono Server CE && EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
Upgrade to Psono Server 7.2.4 or later.
Workaround
No workaround given by the vendor.
References
History
Tue, 27 Oct 2026 06:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Psono Server CE && EE versions 0.1.0 through 7.2.3 accepted a user-controlled host when configuring a personal Duo device and passed it to the Duo client without an allowlist or explicit timeout. An authenticated remote attacker could cause the server to connect to selected hosts over HTTPS on port 443 and distinguish failure modes, providing an internal DNS and service-reachability oracle. Connections still required TLS certificate validation, and the flaw did not provide arbitrary protocol or port access. Unresponsive targets could also occupy a server worker until the operating-system timeout. | |
| Title | User-controlled Duo host permits authenticated SSRF in Psono Server | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: esaqa
Published:
Updated: 2026-10-27T05:55:07.068Z
Reserved: 2026-10-27T05:33:18.001Z
Link: CVE-2026-117471
No data.
Status : Deferred
Published: 2026-10-27T06:17:25.020
Modified: 2026-10-27T15:00:49.240
Link: CVE-2026-117471
No data.
OpenCVE Enrichment
Updated: 2026-10-27T08:30:13Z
Weaknesses