CVE-2026-86589

Apache Answer: User Center integration does not revoke first-login sessions after central account suspension

Published Oct 19, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
Incorrect implementation of authentication algorithm vulnerability in Apache Answer.



This issue affects Apache Answer: through 2.0.2.



A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session
expires or is revoked.



Users are recommended to upgrade to version 2.0.3, which fixes the issue.

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 cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

ssvc

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

Type Values Removed Values Added
First Time appeared Apache
Apache answer
Apache Software Foundation
Apache Software Foundation apache Answer
Vendors & Products Apache
Apache answer
Apache Software Foundation
Apache Software Foundation apache Answer
Type Values Removed Values Added
Description Incorrect implementation of authentication algorithm vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session expires or is revoked. Users are recommended to upgrade to version 2.0.3, which fixes the issue.
Title Apache Answer: User Center integration does not revoke first-login sessions after central account suspension
Weaknesses CWE-303
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Oct 30, 2026, 4:35 PM
Reserved
Sep 8, 2026, 7:11 AM
Status
Deferred
Published
Oct 19, 2026, 10:16 AM
Modified
Oct 30, 2026, 5:17 PM