Psono Server versions 5.3.5 through 7.2.3 used a permission class that did not enforce token write scope when claiming a device code. An authenticated remote attacker holding a restricted API key-derived session could claim an attacker-controlled device code and obtain a full read-write session valid for up to 365 days, bypassing the original token's scope and lifetime restrictions. This did not bypass two-factor authentication or directly disclose plaintext secrets.
Metrics
Affected Vendors & Products
References
History
Tue, 27 Oct 2026 06:15:00 +0000
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Tue, 27 Oct 2026 06:00:00 +0000
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| Description | Psono Server versions 5.3.5 through 7.2.3 used a permission class that did not enforce token write scope when claiming a device code. An authenticated remote attacker holding a restricted API key-derived session could claim an attacker-controlled device code and obtain a full read-write session valid for up to 365 days, bypassing the original token's scope and lifetime restrictions. This did not bypass two-factor authentication or directly disclose plaintext secrets. | |
| Title | Device-code claim permits restricted token escalation in Psono Server | |
| Weaknesses | CWE-269 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: esaqa
Published: 2026-10-27T05:41:30.742Z
Updated: 2026-10-27T05:59:08.920Z
Reserved: 2026-10-27T05:33:18.001Z
Link: CVE-2026-117468
No data.
Status : Received
Published: 2026-10-27T06:17:24.527
Modified: 2026-10-27T06:17:24.527
Link: CVE-2026-117468
No data.