Is this vulnerability remotely exploitable?

Yes, if your application accepts tar or tar.gz archives from remote users or external systems and processes them with nanotar, an attacker can exploit this issue over the network by supplying a crafted archive.

What level of access does an attacker need?

The attacker needs the ability to provide or influence the tar archive processed by nanotar. They do not require shell access to the server; the vulnerability is triggered when the application itself processes the malicious archive.

What is the safest general fix pattern?

The safest approach is to enforce strict path normalization and boundary checks on all archive entries before file creation. Only allow files to be written if their canonical paths remain within an approved extraction directory, and ignore or reject any entries that attempt to escape that directory.

Severity:

CRITICAL RISK

(9.8)

Path Traversal (CWE-22) in nanotar Archive Extraction Routines

CVE-2025-69874

Published:

Feb 11, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Write Outside Intended Directory

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Write Outside Intended Directory

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Path Traversal (CWE-22) in nanotar Archive Extraction Routines

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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