CVE-2021-38197

Name: CVE-2021-38197
Creator: NVD / NIST
Published: 2021-08-08T16:15:07.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.11%

Last modified Jun 17, 2026

CVE-2021-38197 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. unarr.go in go-unarr (aka Go bindings for unarr) 0.1.1 allows Directory Traversal via ../ in a pathname within a TAR archive.. EPSS estimates a 2.11% chance of exploitation in the next 30 days.

Description

unarr.go in go-unarr (aka Go bindings for unarr) 0.1.1 allows Directory Traversal via ../ in a pathname within a TAR archive.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.11%

79.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Go-Unarr Project	Go-Unarr	0.1.1

References

https://github.com/gen2brain/go-unarr/issues/21Exploit, Issue Tracking, Third Party Advisory
https://github.com/gen2brain/go-unarr/issues/21Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Aug 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38197?

unarr.go in go-unarr (aka Go bindings for unarr) 0.1.1 allows Directory Traversal via ../ in a pathname within a TAR archive.

How severe is CVE-2021-38197?

CVE-2021-38197 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.11% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38197?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38197?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST