CVE-2026-79317

Published Sep 21, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Session Invalidation Flaw in x‑ui 0.3.2 Allows Persistent Admin Access After Credential Rotation
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Type Values Removed Values Added
Title Session Invalidation Flaw in x‑ui 0.3.2 Allows Persistent Admin Access After Credential Rotation
Weaknesses CWE-613
Type Values Removed Values Added
First Time appeared Vaxilu
Vaxilu x-ui
Vendors & Products Vaxilu
Vaxilu x-ui
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 22, 2026, 2:06 PM
Reserved
Aug 25, 2026, 12:00 AM
Status
Deferred
Published
Sep 21, 2026, 9:17 PM
Modified
Sep 22, 2026, 8:00 PM