CVE-2026-10842Network attack vector

Unauthenticated access to protected application data

Published Jul 30, 2026 · Updated Jul 30, 2026

Authentication bypass in IBM WebSphere Application Server and Liberty allows remote attackers to read protected application data. IBM has not published the alternate-name input, request path, or authentication check that mishandles it. Exposure requires appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, or appSecurity-4.0 to be enabled; the reported impact excludes data modification and service interruption.

CVSS severity7.5
High
EPSS probability0.31%
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 and Liberty allows remote attackers to read protected application data. IBM has not published the alternate-name input, request path, or authentication check that mishandles it. Exposure requires appSecurity-1.0, appSecurity-2.0, appSecurity-3.0, or appSecurity-4.0 to be enabled; the reported impact excludes data modification and service interruption.

The record

CVE
CVE-2026-10842
Published
Jul 30, 2026
Updated
Jul 30, 2026
Vendor
OpenBMC Project
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-289, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 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=17.0.0.3 <=26.0.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · IBM WebSphere Application Server Libertyversion=17.0.0.3 <=26.0.0.7
OpenBMC Project · IBM WebSphere Application Serverversion=8.5; version=9.0

Published CVSS scores

7.5IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-289Authentication Bypass by Alternate Name
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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