CVE-2026-86589Network attack vectorHinoki check available

Suspension bypass via missing external session identity

Published Oct 19, 2026 · Updated Oct 19, 2026

Authentication bypass in Apache Answer 2.0.2 and earlier allows remote authenticated users to retain access via User Center sessions. The login integration omits the external identity from newly created external-user sessions, causing later requests to skip central account suspension or deletion checks. Exploitation requires User Center integration and an existing affected session; access persists until that session expires or is revoked.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in Apache Answer 2.0.2 and earlier allows remote authenticated users to retain access via User Center sessions. The login integration omits the external identity from newly created external-user sessions, causing later requests to skip central account suspension or deletion checks. Exploitation requires User Center integration and an existing affected session; access persists until that session expires or is revoked.

The record

CVE
CVE-2026-86589
Published
Oct 19, 2026
Updated
Oct 19, 2026
Vendor
The Apache Software Foundation
Product
Apache Answer
Classifications
CWE-303
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Answerversion=0 <=2.0.2

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-303Incorrect Implementation of Authentication Algorithm

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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