CVE-2020-36566

Name: CVE-2020-36566
Creator: NVD / NIST
Published: 2022-12-27T22:15:11.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2020-36566 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Due to improper path sanitization, archives containing relative file paths can cause files to be written (or overwritten) outside of the target directory.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Due to improper path sanitization, archives containing relative file paths can cause files to be written (or overwritten) outside of the target directory.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.02%

59.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Tar-Utils Project	Tar-Utils	< 0.0.0-20201201191210-20a61371de5b

References

https://github.com/whyrusleeping/tar-utils/commit/20a61371de5b51380bbdb0c7935b30b0625ac227Patch, Third Party Advisory
https://pkg.go.dev/vuln/GO-2021-0106Third Party Advisory
https://snyk.io/research/zip-slip-vulnerabilityTechnical Description, Third Party Advisory
https://github.com/whyrusleeping/tar-utils/commit/20a61371de5b51380bbdb0c7935b30b0625ac227Patch, Third Party Advisory
https://pkg.go.dev/vuln/GO-2021-0106Third Party Advisory
https://snyk.io/research/zip-slip-vulnerabilityTechnical Description, Third Party Advisory

Timeline

Published: Dec 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36566?

Due to improper path sanitization, archives containing relative file paths can cause files to be written (or overwritten) outside of the target directory.

How severe is CVE-2020-36566?

CVE-2020-36566 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36566?

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-2020-36566?

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

Scan your code now

Source: NVD / NIST