Link Following Affecting libarchive package, versions <3.5.2-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.39% (32nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBARCHIVE-18021718
  • published20 Jul 2026
  • disclosed23 Aug 2022

Introduced: 23 Aug 2022

CVE-2021-23177  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Echo:latest libarchive to version 3.5.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

CVSS Base Scores

version 3.1