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CVE-2021-38197

Tarslip in go-unarr

9.8 CriticalFix available

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.11%Up 1.7 points since Aug 9, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

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

Record
CVE-2021-38197
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-22
Updated
2026-11-02
CVE List No score

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

Record
CVE-2021-38197
Updated
2026-11-02
EUVDEUVD-2021-2114 No score

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

Record
EUVD-2021-2114
Updated
2026-11-03
GitHub AdvisoriesGHSA-v9j4-cp63-qv62 9.8

Tarslip in go-unarr

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

Record
GHSA-v9j4-cp63-qv62
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-22
Updated
2026-11-02
OSV 9.8

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

Record
CVE-2021-38197
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-v9j4-cp63-qv62 9.8

Tarslip in go-unarr

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

Record
GHSA-v9j4-cp63-qv62
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-22
Updated
2026-11-02
OSVGO-2022-0929 No score

Tarslip in go-unarr in github.com/gen2brain/go-unarr

Tarslip in go-unarr in github.com/gen2brain/go-unarr

Record
GO-2022-0929
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/gen2brain/go-unarr
Go
before 0.1.4
0.1.4

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-38197 is a critical vulnerability (CVSS 9.8) in Go-unarr Project Go-unarr, published August 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.11%, the 81st percentile. Fixed in github.com/gen2brain/go-unarr 0.1.4.

References

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