CVE-2023-31419: Elasticsearch StackOverflow vulnerability
CSIRTS triage
- What
- Stack overflow vulnerability in Elasticsearch allows attacker to exhaust stack memory and crash process.
- Who is affected
- Elasticsearch deployments accepting untrusted input that triggers deep recursion or nesting.
- Urgency
- Medium severity (CVSS 6.5); denial of service impact requires specific input conditions but can crash clusters.
- Action
- Update Elasticsearch to version containing stack overflow mitigation.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Elasticsearch
Get an email when a new Elasticsearch advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-31419
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation likely imminentCVE-2023-31419EPSS puts this in the most-targeted tier (60.7% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 99.1% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2023-31419 | coverage & exploitation status | NVD · CVE.org |
More from Microsoft Security Response Center
- lowCVE-2026-14673: PostgreSQL amcheck does not clear untrusted search path2026-08-11
- criticalCVE-2026-69836: Microsoft Entra ID Remote Code Execution Vulnerability2026-08-11
- mediumCVE-2026-53792: rsync < 3.5.0 Out-of-Bounds Read via Zero-Length Checksum Block2026-08-11
- highCVE-2026-70347: Windows Installer Elevation of Privilege Vulnerability2026-08-11
- highCVE-2026-64909: Microsoft Office Remote Code Execution Vulnerability2026-08-11