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PatchSiren cyber security CVE debrief

CVE-2026-15057 IBM CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-28T21:17:27.367Z and has not been modified since then. The vulnerability affects IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.7, allowing attackers to cause a denial of service due to uncontrolled heap allocation. This issue, classified as CWE-787, could disrupt service availability. Organizations should prioritize patching and review incident response plans to address potential attacks. Additional verification is required to confirm affected deployments and assess potential impact. Defenders should review official advisories and CVE records for detailed guidance.

Vendor
IBM
Product
WebSphere Application Server - Liberty
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-28
Original CVE updated
2026-08-05
Advisory published
2026-07-28
Advisory updated
2026-08-05

Who should care

Organizations using IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7, particularly those in charge of vulnerability management, security teams, and operators responsible for maintaining these systems, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing and updating incident response plans to address potential denial of service attacks.

Technical summary

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service due to uncontrolled heap allocation, classified as CWE-787. This vulnerability could allow attackers to cause a denial of service, potentially disrupting service availability. Affected organizations should prioritize patching to prevent potential attacks.

Defensive priority

Organizations using IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 should prioritize patching to prevent potential denial of service attacks.

Recommended defensive actions

  • Inventory and verify affected IBM WebSphere Application Server - Liberty versions
  • Apply patches or updates to affected versions
  • Monitor for potential denial of service attacks
  • Review and update incident response plans

Evidence notes

The CVE record indicates that IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service due to uncontrolled heap allocation. The NVD entry is currently Analyzed. However, additional verification is required to confirm affected deployments and assess potential impact. Defenders should review official advisories and CVE records for detailed guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-15057 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-15057

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

  • CVE-2026-15057 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-15057

    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.