Unscored severity · published Oct 19, 2026
CVE-2026-86589
Apache Answer: User Center integration does not revoke first-login sessions after central account suspension
–
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Answer · Apache Software Foundation
through 2.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86589
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86589
lists.apache.org
https://lists.apache.org/thread/t8mbzfolzlqz4z5hcwq3v0lnwjqb2tl5
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/10/16/33
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