CVE-2020-7668: In all versions of the package github.com/unknwon/cae/tz, the ExtractTo function doesn't securely escape file

This week

HIGH 7.5REMOTEMITIGATE

CVE-2020-7668 is a high-severity flaw (CVSS 7.5) affecting compression and archive extensions tz project. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In all versions of the package github.com/unknwon/cae/tz, the ExtractTo function doesn't securely escape file paths in zip archives which include leading or non-leading "..". This allows an attacker to add or replace files system-wide.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-22
Published	2020-06-23
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: compression and archive extensions tz project

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

Am I affected?

Timeline

2020-06-23 19:38 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

compression and archive extensions tz project compression and archive extensions tz project MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy compression-and-archive-extensions-tz-project || rpm -q compression-and-archive-extensions-tz-project || compression-and-archive-extensions-tz-project --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2020-7668?

compression and archive extensions tz project: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-7668 being exploited?

CVE-2020-7668 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-2020-7668 affect?

CVE-2020-7668 affects compression and archive extensions tz project. Severity is high (CVSS 7.5). In all versions of the package github.com/unknwon/cae/tz, the ExtractTo function doesn't securely escape file paths in zip archives which include leading or non-leading "..". This allows an attacker to add or replace files system-wide.

How urgent is CVE-2020-7668?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities

References

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