CVE-2026-72686 Details
A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single request containing a crafted user-supplied input. A specific internal component validates the input using a recursive routine and applies no bound to the length of the value being validated, so the validation causes the thread to exhaust its stack. The resulting fatal error is not handled by the surrounding execution paths and terminates the affected node process, producing a denial of service.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-72686
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.37 Probability of exploitation activity being observed over the next 30 days (30th percentile)
CVSS score for CVE-2026-72686
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
6.5 Medium
Products affected by CVE-2026-72686
Elasticsearch 8.7.0
Elasticsearch 8.7.0
Elasticsearch 8.7.1
Elasticsearch 8.7.1
Elasticsearch 8.8.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-72686 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
CN 134 23.10%
US 97 16.72%
DE 53 9.14%
MX 48 8.28%
FR 31 5.34%
IN 24 4.14%
RU 23 3.97%
BR 20 3.45%
SG 18 3.10%
VN 14 2.41%

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CVE-2026-72686 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 328 87.70%
Telecommunications 31 8.29%
Retail 10 2.67%
Education 2 0.53%
Government/Politics 2 0.53%
Finance 1 0.27%

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