Arbitrary Command Injection Affecting salt package, versions <2017.7.4+dfsg1-1ubuntu18.04.2+esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
8.25% (95th percentile)

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  • Snyk IDSNYK-UBUNTU1804-SALT-1122646
  • published21 Mar 2026
  • disclosed27 Feb 2021

Introduced: 27 Feb 2021

CVE-2021-3148  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 salt to version 2017.7.4+dfsg1-1ubuntu18.04.2+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream salt package and not the salt package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

An issue was discovered in SaltStack Salt before 3002.5. Sending crafted web requests to the Salt API can result in salt.utils.thin.gen_thin() command injection because of different handling of single versus double quotes. This is related to salt/utils/thin.py.

CVSS Base Scores

version 3.1