CVE-2021-32090

Name: CVE-2021-32090
Creator: NVD / NIST
Published: 2021-05-07T05:15:08.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.11%

Last modified Jun 17, 2026

CVE-2021-32090 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The dashboard component of StackLift LocalStack 0.12.6 allows attackers to inject arbitrary shell commands via the functionName parameter.. EPSS estimates a 2.11% chance of exploitation in the next 30 days.

Description

The dashboard component of StackLift LocalStack 0.12.6 allows attackers to inject arbitrary shell commands via the functionName parameter.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.11%

79.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Localstack	Localstack	0.12.6

References

https://blog.sonarsource.com/hack-the-stack-with-localstackExploit, Third Party Advisory
https://portswigger.net/daily-swig/localstack-zero-day-vulnerabilities-chained-to-achieve-remote-takeover-of-local-instancesExploit, Third Party Advisory
https://blog.sonarsource.com/hack-the-stack-with-localstackExploit, Third Party Advisory
https://portswigger.net/daily-swig/localstack-zero-day-vulnerabilities-chained-to-achieve-remote-takeover-of-local-instancesExploit, Third Party Advisory

Timeline

Published: May 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32090?

The dashboard component of StackLift LocalStack 0.12.6 allows attackers to inject arbitrary shell commands via the functionName parameter.

How severe is CVE-2021-32090?

CVE-2021-32090 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.11% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32090?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32090?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST