How severe is CVE-2026-25999?

CVE-2026-25999 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-25999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25999?

CVE-2026-25999 affects Aiven Klaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25999?

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.

Does CVE-2026-25999 have an EU (EUVD) identifier?

Yes. CVE-2026-25999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6199.

When was CVE-2026-25999 published?

CVE-2026-25999 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2026-25999

CVE-2026-25999 is a high-severity vulnerability in Aiven Klaw with a CVSS 3.x base score of 7.1. 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-285.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6199
Weakness: CWE-285
Affected product: Aiven Klaw
Published: 2026-02-11
Last modified: 2026-06-17

Description

Klaw is a self-service Apache Kafka Topic Management/Governance tool/portal. Prior to 2.10.2, there is an improper access control vulnerability that allows unauthorized users to trigger a reset or deletion of metadata for any tenant. By sending a crafted request to the /resetMemoryCache endpoint, an attacker can clear cached configurations, environments, and cluster data. This vulnerability is fixed in 2.10.2.

Frequently asked questions

What is CVE-2026-25999?: Klaw is a self-service Apache Kafka Topic Management/Governance tool/portal. Prior to 2.10.2, there is an improper access control vulnerability that allows unauthorized users to trigger a reset or deletion of metadata for any tenant. By sending a crafted request to the /resetMemoryCache endpoint, an attacker can clear cached configurations, environments, and cluster data. This vulnerability is fixed in 2.10.2.
How severe is CVE-2026-25999?: CVE-2026-25999 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-25999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25999?: CVE-2026-25999 affects Aiven Klaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25999?: 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.
Does CVE-2026-25999 have an EU (EUVD) identifier?: Yes. CVE-2026-25999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6199.
When was CVE-2026-25999 published?: CVE-2026-25999 was published on 2026-02-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:aiven:klaw:*:*:*:*:*:*:*:*

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