CVE-2021-31559

—

CVSS 3.1

7.5 high

EPSS

<1%p57

Published

May 6, 2022 (May 6, 2022)

Modified

Jun 17, 2026

Description

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.

Vendors: splunk
Products: splunk
Weakness: CWE-288
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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