How severe is CVE-2026-63137?

CVE-2026-63137 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-63137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-63137?

CVE-2026-63137 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-63137?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-63137 published?

CVE-2026-63137 was published on 2026-09-01 and last updated on 2026-09-02.

CVE-2026-63137

CVE-2026-63137 is a high-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 8.3. 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-863.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Elastic Kibana
Published: 2026-09-01
Last modified: 2026-09-02

Description

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). A user holding workflow edit permissions could cause scheduled workflow executions to run with the privileges of a different, higher-privileged user, allowing access to and modification of data beyond their own authorization scope.

Frequently asked questions

What is CVE-2026-63137?: Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). A user holding workflow edit permissions could cause scheduled workflow executions to run with the privileges of a different, higher-privileged user, allowing access to and modification of data beyond their own authorization scope.
How severe is CVE-2026-63137?: CVE-2026-63137 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-63137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-63137?: CVE-2026-63137 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-63137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-63137 published?: CVE-2026-63137 was published on 2026-09-01 and last updated on 2026-09-02.

References

https://discuss.elastic.co/t/kibana-9-4-3-security-update-esa-2026-61/390086

Affected products (1)

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

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