CVE-2021-37914

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-08-03 · updated 2026-06-17
Weakness: CWE-20

Description

In Argo Workflows through 3.1.3, if EXPRESSION_TEMPLATES is enabled and untrusted users are allowed to specify input parameters when running workflows, an attacker may be able to disrupt a workflow because expression template output is evaluated.

Affected products

argoproj argo-workflows: through 3.1.3

References

https://github.com/argoproj/argo-workflows/issues/6441
https://github.com/argoproj/argo-workflows/pull/6442
https://github.com/argoproj/argo-workflows/issues/6441
https://github.com/argoproj/argo-workflows/pull/6442

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