Command injection in Lens causes arbitrary shell command execution when malicious custom helm chart configuration provided

published 2022-01-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10266

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

In Lens prior to 5.3.4, custom helm chart configuration creates helm commands from string concatenation of provided arguments which are then executed in the user's shell. Arguments can be provided which cause arbitrary shell commands to run on the system.

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.3	CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

Mirantis Lens

Classification

Weakness

CWE-94 Improper Control of Generation of Code
CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

github.com /Mirantis/security/blob/main/advisories/0003.md
third-party-advisory

Sources

CVE List CVE-2021-23154
NVD CVE-2021-23154

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Summary