CVE-2026-79824

File overwrite via TAR filename traversal

Published Oct 15, 2026 · Updated Oct 15, 2026

Path traversal in HPE NonStop Python 3.x allows attackers to overwrite arbitrary files through crafted TAR archive filenames. TAR archive handling accepts .. path components in member names, allowing writes outside the intended extraction directory; the retrieved CNA record does not name an affected function. The published assessment requires adjacent-network access and user interaction without authentication, but does not identify the extraction workflow.

CVSS severity8.0
High
EPSS probability0.48%
Next 30 days · Oct 20, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Path traversal in HPE NonStop Python 3.x allows attackers to overwrite arbitrary files through crafted TAR archive filenames. TAR archive handling accepts .. path components in member names, allowing writes outside the intended extraction directory; the retrieved CNA record does not name an affected function. The published assessment requires adjacent-network access and user interaction without authentication, but does not identify the extraction workflow.

The record

CVE
CVE-2026-79824
Published
Oct 15, 2026
Updated
Oct 15, 2026
Vendor
Hewlett Packard Enterprise
Product
HPE NonStop Python
Classifications
CWE-30, CAPEC-165
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=T0993L01^AAL and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise · HPE NonStop Pythonversion=T0993L01^AAL and earlier

Published CVSS scores

8.0Hewlett Packard EnterpriseCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-30Path Traversal: '\dir\..\filename'
CAPEC-165File Manipulation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started