How severe is CVE-2021-22142?

CVE-2021-22142 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22142 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22142?

CVE-2021-22142 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22142?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22142 published?

CVE-2021-22142 was published on 2023-11-22 and last updated on 2026-06-17.

CVE-2021-22142

CVE-2021-22142 is a medium-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1104.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1104
Affected product: Elastic Kibana
Published: 2023-11-22
Last modified: 2026-06-17

Description

Kibana contains an embedded version of the Chromium browser that the Reporting feature uses to generate the downloadable reports. If a user with permissions to generate reports is able to render arbitrary HTML with this browser, they may be able to leverage known Chromium vulnerabilities to conduct further attacks. Kibana contains a number of protections to prevent this browser from rendering arbitrary content.

Frequently asked questions

What is CVE-2021-22142?: Kibana contains an embedded version of the Chromium browser that the Reporting feature uses to generate the downloadable reports. If a user with permissions to generate reports is able to render arbitrary HTML with this browser, they may be able to leverage known Chromium vulnerabilities to conduct further attacks. Kibana contains a number of protections to prevent this browser from rendering arbitrary content.
How severe is CVE-2021-22142?: CVE-2021-22142 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22142 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22142?: CVE-2021-22142 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22142?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22142 published?: CVE-2021-22142 was published on 2023-11-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

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