How severe is CVE-2026-0530?

CVE-2026-0530 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-2026-0530 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-2026-0530?

CVE-2026-0530 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0530?

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

Does CVE-2026-0530 have an EU (EUVD) identifier?

Yes. CVE-2026-0530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2039.

When was CVE-2026-0530 published?

CVE-2026-0530 was published on 2026-01-13 and last updated on 2026-06-17.

CVE-2026-0530

CVE-2026-0530 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-770.

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-2026-2039
Weakness: CWE-770
Affected product: Elastic Kibana
Published: 2026-01-13
Last modified: 2026-06-17

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted request. This causes the application to perform redundant processing operations that continuously consume system resources until service degradation or complete unavailability occurs.

Frequently asked questions

What is CVE-2026-0530?: Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted request. This causes the application to perform redundant processing operations that continuously consume system resources until service degradation or complete unavailability occurs.
How severe is CVE-2026-0530?: CVE-2026-0530 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-2026-0530 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-2026-0530?: CVE-2026-0530 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0530?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-0530 have an EU (EUVD) identifier?: Yes. CVE-2026-0530 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2039.
When was CVE-2026-0530 published?: CVE-2026-0530 was published on 2026-01-13 and last updated on 2026-06-17.

References

https://discuss.elastic.co/t/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-03/384521

Affected products (1)

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

More vulnerabilities in Elastic Kibana

CVE-2019-7609 — Critical (CVSS 10.0): Kibana versions before 5.6.15 and 6.6.1 contain an arbitrary code execution flaw in the Timelion visualizer. An…
CVE-2025-25015 — Critical (CVSS 9.9): Prototype pollution in Kibana leads to arbitrary code execution via a crafted file upload and specifically crafted HTTP…
CVE-2024-37288 — Critical (CVSS 9.9): A deserialization issue in Kibana can lead to arbitrary code execution when Kibana attempts to parse a YAML document…
CVE-2018-17246 — Critical (CVSS 9.8): Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the Console plugin. An attacker…
CVE-2018-17245 — Critical (CVSS 9.8): Kibana versions 4.0 to 4.6, 5.0 to 5.6.12, and 6.0 to 6.4.2 contain an error in the way authorization credentials are…
CVE-2025-25014 — Critical (CVSS 9.1): A Prototype pollution vulnerability in Kibana leads to arbitrary code execution via crafted HTTP requests to machine…

All CVEs affecting Elastic Kibana →

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities

CVE-2026-31283 — Critical (CVSS 9.8): In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email…
CVE-2020-37067 — Critical (CVSS 9.8): Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers…
CVE-2021-47875 — Critical (CVSS 9.8): GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the…
CVE-2025-11832 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling vulnerability in Azure Access Technology BLU-IC2, Azure Access…
CVE-2024-44241 — Critical (CVSS 9.8): The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia…
CVE-2022-3439 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

Browse all CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities →