CVE-2026-72638 Affecting ruby4.0-elasticsearch package, versions <9.5.0-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-RUBY40ELASTICSEARCH-19002161
- published20 Aug 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
NewCVE-2026-72638 (opens in a new tab)How to fix?
Upgrade Minimos:latest ruby4.0-elasticsearch to version 9.5.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby4.0-elasticsearch package and not the ruby4.0-elasticsearch package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.