How severe is CVE-2026-30893?

CVE-2026-30893 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2026-30893 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30893?

CVE-2026-30893 affects Wazuh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30893?

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

Does CVE-2026-30893 have an EU (EUVD) identifier?

Yes. CVE-2026-30893 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26271.

When was CVE-2026-30893 published?

CVE-2026-30893 was published on 2026-04-29 and last updated on 2026-06-17.

CVE-2026-30893

CVE-2026-30893 is a critical-severity vulnerability in Wazuh with a CVSS 3.x base score of 9.0. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26271
Weakness: CWE-22
Affected product: Wazuh
Published: 2026-04-29
Last modified: 2026-06-17

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.4.0 to before version 4.14.4, a path traversal vulnerability in Wazuh's cluster synchronization extraction routine allows an authenticated cluster peer to write arbitrary files outside the intended extraction directory on other cluster nodes. This can be escalated to code execution in the Wazuh service context by overwriting Python modules loaded by Wazuh components (proof of concept available as separate attachment). In deployments where the cluster daemon runs with elevated privileges, system-level compromise is possible. This issue has been patched in version 4.14.4.

Frequently asked questions

What is CVE-2026-30893?: Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.4.0 to before version 4.14.4, a path traversal vulnerability in Wazuh's cluster synchronization extraction routine allows an authenticated cluster peer to write arbitrary files outside the intended extraction directory on other cluster nodes. This can be escalated to code execution in the Wazuh service context by overwriting Python modules loaded by Wazuh components (proof of concept available as separate attachment). In deployments where the cluster daemon runs with elevated privileges, system-level compromise is possible. This issue has been patched in version 4.14.4.
How severe is CVE-2026-30893?: CVE-2026-30893 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2026-30893 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30893?: CVE-2026-30893 affects Wazuh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30893?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-30893 have an EU (EUVD) identifier?: Yes. CVE-2026-30893 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26271.
When was CVE-2026-30893 published?: CVE-2026-30893 was published on 2026-04-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*

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