CVE-2026-79715Hinoki check available

File writes via application archive path traversal

Published Oct 13, 2026 · Updated Oct 13, 2026

Path traversal in IBM WebSphere Application Server Liberty allows local users to write files outside intended directories via application archives. Application archive handling fails to confine writes to the intended directory; IBM does not identify the responsible function. Exploitation requires low-privileged local access and a crafted archive, with file modification rather than disclosed code execution as the established consequence.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in IBM WebSphere Application Server Liberty allows local users to write files outside intended directories via application archives. Application archive handling fails to confine writes to the intended directory; IBM does not identify the responsible function. Exploitation requires low-privileged local access and a crafted archive, with file modification rather than disclosed code execution as the established consequence.

The record

CVE
CVE-2026-79715
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
IBM
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-22
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 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 <=26.0.0.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IBM · IBM WebSphere Application Server Libertyversion=17.0.0.3 <=26.0.0.9

Published CVSS scores

5.5IBMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

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