CVE-2020-36561

Name: CVE-2020-36561
Creator: NVD / NIST
Published: 2022-12-27T22:15:11.623+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2020-36561 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 1.32% 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

1.32%

67.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Unzip Project	Unzip	< 1.0.3-0.20200308084313-2adbaa4891b9

References

https://github.com/yi-ge/unzip/commit/2adbaa4891b9690853ef10216189189f5ad7dc73Patch, Third Party Advisory
https://github.com/yi-ge/unzip/pull/1Exploit, Third Party Advisory
https://pkg.go.dev/vuln/GO-2020-0035Third Party Advisory
https://snyk.io/research/zip-slip-vulnerabilityTechnical Description, Third Party Advisory
https://github.com/yi-ge/unzip/commit/2adbaa4891b9690853ef10216189189f5ad7dc73Patch, Third Party Advisory
https://github.com/yi-ge/unzip/pull/1Exploit, Third Party Advisory
https://pkg.go.dev/vuln/GO-2020-0035Third 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-2020-36561?

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-2020-36561?

CVE-2020-36561 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36561?

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-2020-36561?

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

Scan your code now

Source: NVD / NIST