CVE-2025-69874: nanotar through 0.2.0 has a path traversal vulnerability in parseTar() and parseTarGzip() that allows remote a

Q: How do I fix CVE-2025-69874?

nanotar: upgrade to newer than 0.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-69874 being exploited?

CVE-2025-69874 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-69874 affect?

CVE-2025-69874 affects nanotar. Severity is critical (CVSS 9.8). nanotar through 0.2.0 has a path traversal vulnerability in parseTar() and parseTarGzip() that allows remote attackers to write arbitrary files outside the intended extraction directory via a crafted tar archive containing path traversal se

Q: How urgent is CVE-2025-69874?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-69874 is a critical-severity flaw (CVSS 9.8) affecting nanotar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

nanotar through 0.2.0 has a path traversal vulnerability in parseTar() and parseTarGzip() that allows remote attackers to write arbitrary files outside the intended extraction directory via a crafted tar archive containing path traversal sequence.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-02-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: unjs

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-11 18:16 UTCPublished CVE record published
2026-06-17 10:00 UTCUpdated Record last modified

unjs nanotar UPGRADE

Affected: <= 0.2.0

Fixed in: newer than 0.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls nanotar

2. UPGRADE to newer than 0.2.0

npm install nanotar@">0.2.0"

Exact fixes by distribution

npm · nanotar · NO FIX YET · vulnerable: <= 0.2.0 · source

Fedora ELN · openjpeg · FIXED · 2.5.4-5.eln159 · FEDORA-2026-1a5f60f401 · source

sudo dnf upgrade --advisory=FEDORA-2026-1a5f60f401

Fedora 46 · trustedqsl · FIXED · 2.8.7-1.fc46 · FEDORA-2026-6b1bc90ebc · source

sudo dnf upgrade --advisory=FEDORA-2026-6b1bc90ebc

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/EthanKim88/ethan-cve-disclosures/blob/main/CVE-2025-69874-nanotar-Path-Traversa

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-69874?

nanotar: upgrade to newer than 0.2.0. Exact commands for each OS are on this page.

Is CVE-2025-69874 being exploited?

CVE-2025-69874 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-69874 affect?

CVE-2025-69874 affects nanotar. Severity is critical (CVSS 9.8). nanotar through 0.2.0 has a path traversal vulnerability in parseTar() and parseTarGzip() that allows remote attackers to write arbitrary files outside the intended extraction directory via a crafted tar archive containing path traversal se

How urgent is CVE-2025-69874?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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