A session invalidation flaw exists in x-ui 0.3.2. The full user object is stored in a client-side signed cookie, and authentication only checks that a user object can be retrieved from the cookie without re-validating against the database or any session version. When an administrator changes the username or password, previously issued session cookies are not revoked, so an attacker who holds a pre-change admin cookie can continue accessing and operating the management interface after the credentials have been rotated.

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Advisories

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Fixes

Solution

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Workaround

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History

Mon, 21 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Vaxilu
Vaxilu x-ui
Vendors & Products Vaxilu
Vaxilu x-ui

Mon, 21 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Description A session invalidation flaw exists in x-ui 0.3.2. The full user object is stored in a client-side signed cookie, and authentication only checks that a user object can be retrieved from the cookie without re-validating against the database or any session version. When an administrator changes the username or password, previously issued session cookies are not revoked, so an attacker who holds a pre-change admin cookie can continue accessing and operating the management interface after the credentials have been rotated.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-21T20:08:34.904Z

Reserved: 2026-08-25T00:00:00.000Z

Link: CVE-2026-79317

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T21:17:12.327

Modified: 2026-09-21T21:17:12.327

Link: CVE-2026-79317

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T21:45:17Z

Weaknesses

No weakness.