How severe is CVE-2026-72677?

CVE-2026-72677 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-72677 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-72677?

CVE-2026-72677 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-72677?

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-2026-72677 published?

CVE-2026-72677 was published on 2026-08-13 and last updated on 2026-09-02.

CVE-2026-72677

CVE-2026-72677 is a high-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 7.3. 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-23.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-23
Affected product: Elastic Kibana
Published: 2026-08-13
Last modified: 2026-09-02

Description

Relative Path Traversal (CWE-23) in Kibana can lead to the unauthorized deletion of Kibana resources via Relative Path Traversal (CAPEC-139). Kibana Fleet accepted a user-supplied identifier for a Fleet Server host configuration without rejecting relative traversal sequences. The identifier is stored as provided and is later incorporated into the request that Kibana issues when that configuration is removed.

Frequently asked questions

What is CVE-2026-72677?: Relative Path Traversal (CWE-23) in Kibana can lead to the unauthorized deletion of Kibana resources via Relative Path Traversal (CAPEC-139). Kibana Fleet accepted a user-supplied identifier for a Fleet Server host configuration without rejecting relative traversal sequences. The identifier is stored as provided and is later incorporated into the request that Kibana issues when that configuration is removed.
How severe is CVE-2026-72677?: CVE-2026-72677 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-72677 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-72677?: CVE-2026-72677 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-72677?: 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-2026-72677 published?: CVE-2026-72677 was published on 2026-08-13 and last updated on 2026-09-02.

References

https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-94/389512

Affected products (1)

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

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