CVE-2026-14976

Code execution via unauthenticated collective controller function

Published Jul 28, 2026 · Updated Jul 28, 2026

Remote code execution in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 allows remote attackers to execute code. With collectiveController-1.0 enabled, an unspecified critical controller function lacks required authentication; IBM has not disclosed the request or code path. Exploitation requires adjacent-network access, high-complexity conditions, user interaction, and the Network Deployment collective-controller feature.

CVSS severity7.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 allows remote attackers to execute code. With collectiveController-1.0 enabled, an unspecified critical controller function lacks required authentication; IBM has not disclosed the request or code path. Exploitation requires adjacent-network access, high-complexity conditions, user interaction, and the Network Deployment collective-controller feature.

The record

CVE
CVE-2026-14976
Published
Jul 28, 2026
Updated
Jul 28, 2026
Vendor
OpenBMC Project
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-306, T1210
Attack vector
adjacent
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=17.0.0.3 <=26.0.0.8

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

OpenBMC Project · IBM WebSphere Application Server Libertyversion=17.0.0.3 <=26.0.0.8

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1IBMCVSS:3.1/AV:A/AC:H/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1210Exploitation of Remote Services

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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