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PatchSiren cyber security CVE debrief

CVE-2026-14981 IBM CVE debrief

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits. Defenders responsible for systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty should assess exposure and potential impact. The CVE record and NVD entry provide details on the denial of service vulnerability. Verify exposure by checking system configurations and versions of IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty. Assess potential impact on systems and prioritize patching or mitigation efforts. The

Vendor
IBM
Product
WebSphere Application Server
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-28
Original CVE updated
2026-09-23
Advisory published
2026-07-28
Advisory updated
2026-09-23

Who should care

Defenders responsible for systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty should assess exposure and potential impact.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact on systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty due to a denial of service vulnerability in the HTTP channel.

  • Verify exposure and assess potential impact on systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty.
  • Prioritize patching or mitigation efforts to prevent potential denial of service attacks.
  • Monitor system resources and logs for signs of potential denial of service attacks.

Technical summary

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits. This vulnerability can cause significant disruptions to service availability. Defenders should prioritize verifying exposure and assessing potential impact on systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty. The vulnerability is detailed in the CVE record and NVD entry.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact on systems using IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty.

Recommended defensive actions

  • Verify exposure by checking system configurations and versions of IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty.
  • Assess potential impact on systems and prioritize patching or mitigation efforts.
  • Monitor system resources and logs for signs of potential denial of service attacks.

Evidence notes

The CVE record and NVD entry provide details on the denial of service vulnerability in IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14981 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14981

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14981 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14981

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.