What’s Vulnerable › Vulnerabilities

CVE-2021-25743: ANSI escape characters in kubectl output are not being filtered

• Severity: low (CVSS 3.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-07 · updated 2026-06-17
• Weakness: CWE-150

Description

kubectl does not neutralize escape, meta or control sequences contained in the raw data it outputs to a terminal. This includes but is not limited to the unstructured string fields in objects such as Events.

Affected products

• Kubernetes: through 1.25.0; 1.26.0-alpha0, 1.26.0-alpha1, 1.26.0-alpha2

References

• https://github.com/kubernetes/kubernetes/issues/101695
• https://security.netapp.com/advisory/ntap-20220217-0003/
• https://github.com/kubernetes/kubernetes/issues/101695
• https://security.netapp.com/advisory/ntap-20220217-0003/

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