CVE-2026-79715 IBM CVE debrief

Who should care

Defenders responsible for IBM WebSphere Application Server - Liberty deployments should assess exposure and prioritize patching or mitigation.

Why it matters

Defenders should prioritize verifying the affected versions of IBM WebSphere Application Server - Liberty and applying patches or mitigations as recommended by the vendor to prevent directory traversal attacks.

• Verify affected versions of IBM WebSphere Application Server - Liberty.
• Apply patches or mitigations to prevent directory traversal.
• Monitor for suspicious activity or anomalies in the system.
• Assess exposure and prioritize patching or mitigation.

Technical summary

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 could allow a local attacker to traverse directories on the system. An attacker could use a specially crafted application archive to write files outside the intended directory. This vulnerability could lead to unauthorized file writes, potentially impacting system integrity and confidentiality. The affected product context indicates that defenders should prioritize verifying the affected versions and applying patches or mitigations as recommended by the vendor to prevent directory traversal.

Defensive priority

Defenders should prioritize verifying the affected versions of IBM WebSphere Application Server - Liberty and applying patches or mitigations as recommended by the vendor.

Recommended defensive actions

• Verify the version of IBM WebSphere Application Server - Liberty and check if it is within the affected range.
• Apply patches or mitigations as recommended by the vendor.
• Monitor for any suspicious activity or anomalies in the system.

Evidence notes

The CVE record and source item provide information on the vulnerability, but limited details are available on exploitation, impact, or remediation. The source item from cve_program_cvelist_v5 and CVE Program record offer insights into the vulnerability. However, additional verification is required to understand the full scope of affected systems and potential mitigations. Defenders should verify the affected versions of IBM WebSphere Application Server - Liberty and assess exposure to

Sources and 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.