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No exploitation reportedFix available

CVE-2021-38197

No exploitation reported by the sources we read.

  • Published2021-08-08
  • Fixed in0.1.4
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

unarr.go in go-unarr (aka Go bindings for unarr) 0.1.1 allows Directory Traversal via ../ in a pathname within a TAR archive.

Timeline

dates in UTC
  1. 2021-08-0816:15CVE publishedNVD

Versions per branch

OSV · NVD
gen2brain/go-unarr
BranchAffectedFixed in
0.1< 0.1.40.1.4
Go-unarr project go-unarr
BranchAffectedFixed in
0.1= 0.1.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update gen2brain/go-unarr to 0.1.4

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.010read 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score2.1 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2021-08-30

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-08-08
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-v9j4-cp63-qv62

Frequently asked questions

What is CVE-2021-38197?

unarr.go in go-unarr (aka Go bindings for unarr) 0.1.1 allows Directory Traversal via ../ in a pathname within a TAR archive.

Is CVE-2021-38197 actively exploited?

Active exploitation of CVE-2021-38197 has not been confirmed. Its EPSS score was 2.1% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-38197?

CVE-2021-38197 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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