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CVE-2020-36566

28
FAUCET Score

CVE-2020-36566 is a critical vulnerability affecting tar_utils_project tar_utils, where improper path sanitization allows archives with relative file paths to write or overwrite files outside the intended directory. This vulnerability has a CVSS score of 9.1 (CRITICAL), indicating it can be exploited remotely with low complexity, leading to high impact on integrity and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.0.0-20201201191210-20a61371de5bCPE matchmatch criteria
cpe:2.3:a:tar-utils_project:tar-utils:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 45th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/whyrusleeping/tar-utilsFixed in: 0.0.0-20201201191210-20a61371de5b

Vendor Advisories (1)

goGHSA-jpf8-h7h7-3ppmcritical

tar-utils Path Traversal vulnerability

Dec 28, 2022

References

github.com / whyrusleeping/tar-utils/commit/20a61371de5b51380bbdb0c7935b30b0625ac227
PatchThird Party Advisory
pkg.go.dev / vuln/GO-2021-0106
Third Party Advisory
snyk.io / research/zip-slip-vulnerability
Technical DescriptionThird Party Advisory