Threat Intelligence / CVE / CVE-2026-20139

CVE-2026-20139

CVSS 4.3 (MEDIUM) · EPSS 0.1% · Published 2026-02-18

In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, a low-privileged user could craft a malicious payload into REST API parameters when changing a password, potentially leading to client-side denial-of-service.

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-400

Threats tracking this CVE

Cisco Webex Services Critical Improper Certificate Validation Flaw (CVE-2026-20137) Enables Man-in-the-Middle Against Cloud Meeting Traffic — CRITICAL

References

https://advisory.splunk.com/advisories/SVD-2026-0204

Full detection coverage & IOCs for threats exploiting CVE-2026-20139 are available via the Threadlinqs MCP server (Purple tier). View plans →

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