CVE-2025-37731
CSIRTS triage
- What
- Improper authentication handling in Elasticsearch allows unauthorized access.
- Who is affected
- Elasticsearch deployments using affected versions.
- Urgency
- Medium-high priority; authentication bypass enables data access and requires prompt patching.
- Action
- Update Elasticsearch to patched version implementing proper authentication validation.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2025-37731: Elasticsearch Improper Authenticationmsrc · 2026-08-06
External references
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[](https://www.csirts.com/cve/CVE-2025-37731)