CVE-2026-16192Network attack vector

Authenticated service interruption via uncontrolled recursion

Published Jul 28, 2026 · Updated Jul 28, 2026

Denial of service in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 allows remote authenticated users to interrupt service. IBM identifies uncontrolled recursion but does not disclose the restConnector processing path, crafted input, or recursive operation. Exploitation requires network access, an authenticated account, and restConnector-1.0 or restConnector-2.0 to be enabled; IBM does not state whether interruption appears as a hang or crash.

CVSS severity7.1
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 allows remote authenticated users to interrupt service. IBM identifies uncontrolled recursion but does not disclose the restConnector processing path, crafted input, or recursive operation. Exploitation requires network access, an authenticated account, and restConnector-1.0 or restConnector-2.0 to be enabled; IBM does not state whether interruption appears as a hang or crash.

The record

CVE
CVE-2026-16192
Published
Jul 28, 2026
Updated
Jul 28, 2026
Vendor
OpenBMC Project
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-674, T1499.004
Attack vector
network
Privileges
authenticated

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 vectornetwork
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

7.1IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499.004Application or System Exploitation

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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