CVE-2020-36560: Path traversal in github.com/artdarek/go-unzip

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-12-27 · updated 2026-06-17
Weakness: CWE-22

Description

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

Affected products

github.com/artdarek/go-unzip: before 1.0.0 — fixed in 1.0.0

How to fix

Upgrade to a fixed version: github.com/artdarek/go-unzip 1.0.0. Check the vendor advisory for mitigations.

References

https://github.com/artdarek/go-unzip/commit/4975cbe0a719dc50b12da8585f1f207c82f7dfe0
https://github.com/artdarek/go-unzip/pull/2
https://pkg.go.dev/vuln/GO-2020-0034
https://snyk.io/research/zip-slip-vulnerability
https://github.com/artdarek/go-unzip/commit/4975cbe0a719dc50b12da8585f1f207c82f7dfe0
https://github.com/artdarek/go-unzip/pull/2
https://pkg.go.dev/vuln/GO-2020-0034
https://snyk.io/research/zip-slip-vulnerability

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