Auth bypass in Aiven Klaw
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Aiven Klaw
- Aiven-Open Klaw — versions < 2.10.2
Weakness classification (CWE)
References
- github.com/Aiven-Open/klaw/security/advisories/GHSA-rp26-qv9w-xr5q (Vendor Advisory)
- github.com/Aiven-Open/klaw/commit/617ed96b1db111ed498d89132321bf39f486e3a1 (Patch)
- github.com/Aiven-Open/klaw/releases/tag/v2.10.2 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-25999?
- CVE-2026-25999 is a high-severity vulnerability in Aiven Klaw, classified under Improper Authorization. CVSS score: 7.1/10. Published 2026-02-11.
- How severe is CVE-2026-25999?
- High severity. CVSS v3 base score is 7.1 out of 10.