How severe is CVE-2026-49094?

CVE-2026-49094 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-49094 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49094?

CVE-2026-49094 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49094?

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

Does CVE-2026-49094 have an EU (EUVD) identifier?

Yes. CVE-2026-49094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33034.

When was CVE-2026-49094 published?

CVE-2026-49094 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-49094

CVE-2026-49094 is a medium-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33034
Weakness: CWE-400
Affected product: Elastic Kibana
Published: 2026-05-28
Last modified: 2026-06-17

Description

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with viewer-level access can submit a request containing an oversized input value to an analytics collections management endpoint. Kibana will consume excessive CPU and memory resources while processing the request. This results in Kibana becoming unavailable to all users until the service is manually recovered.

Frequently asked questions

What is CVE-2026-49094?: Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with viewer-level access can submit a request containing an oversized input value to an analytics collections management endpoint. Kibana will consume excessive CPU and memory resources while processing the request. This results in Kibana becoming unavailable to all users until the service is manually recovered.
How severe is CVE-2026-49094?: CVE-2026-49094 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-49094 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49094?: CVE-2026-49094 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49094?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-49094 have an EU (EUVD) identifier?: Yes. CVE-2026-49094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33034.
When was CVE-2026-49094 published?: CVE-2026-49094 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://discuss.elastic.co/t/kibana-8-19-16-security-update-esa-2026-39/386561/1

Affected products (1)

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

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