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CVE-2021-37914: Improper Input Validation

August 9, 2021 (updated August 30, 2021)

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.

References

  • github.com/advisories/GHSA-h563-xh25-x54q
  • github.com/argoproj/argo-workflows/commit/2a2ecc916925642fd8cb1efd026588e6828f82e1
  • github.com/argoproj/argo-workflows/issues/6441
  • github.com/argoproj/argo-workflows/pull/6285
  • github.com/argoproj/argo-workflows/pull/6442
  • github.com/argoproj/argo-workflows/security/advisories/GHSA-h563-xh25-x54q
  • nvd.nist.gov/vuln/detail/CVE-2021-37914

Code Behaviors & Features

Detect and mitigate CVE-2021-37914 with GitLab Dependency Scanning

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Affected versions

All versions starting from 3.1.0 before 3.1.6

Fixed versions

  • 3.1.6

Solution

Upgrade to version 3.1.6 or above.

Impact 6.5 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

go/github.com/argoproj/argo-workflows/v3/CVE-2021-37914.yml

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