CVE-2026-16184Network attack vector

Unauthenticated access via crafted requests

Published Jul 28, 2026 · Updated Jul 28, 2026

Authentication bypass in IBM WebSphere Application Server 8.5 and 9.0 allows remote attackers to gain access via a crafted request. IBM maps the flaw to missing authorization but has not disclosed the affected request handler or the operation that fails to enforce access control. No credentials or user interaction are required, but IBM has not identified the resources or privileges exposed after the bypass.

CVSS severity7.0
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in IBM WebSphere Application Server 8.5 and 9.0 allows remote attackers to gain access via a crafted request. IBM maps the flaw to missing authorization but has not disclosed the affected request handler or the operation that fails to enforce access control. No credentials or user interaction are required, but IBM has not identified the resources or privileges exposed after the bypass.

The record

CVE
CVE-2026-16184
Published
Jul 28, 2026
Updated
Jul 28, 2026
Vendor
OpenBMC Project
Product
IBM WebSphere Application Server
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 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=8.5
  2. Affected versionversion=9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · IBM WebSphere Application Serverversion=8.5; version=9.0

Published CVSS scores

7.0IBMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

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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