---
id: CVE-2026-76267
title: >-
  In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that
  holds a role with the read_o11y_content capability could inject forged entries
  into the app log through the Representational State Transfer (REST) API
summary: >-
  In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that
  holds a role with the read_o11y_content capability could inject forged entries
  into the app log through the Representational State Transfer (REST) API. The
  vuln…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-117
vendor: Splunk
product: Splunk Enterprise
affected:
  - enterprise >= 10.4 < 10.4.3
  - enterprise >= 10.2 < 10.2.7
  - enterprise >= 10.0 < 10.0.10
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T21:17:17.467'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76267'
references:
  - url: 'https://advisory.splunk.com/advisories/SVD-2026-1001'
    label: psirt@cisco.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-07T21:54:15.093Z'
---

## Overview

In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the read_o11y_content capability could inject forged entries into the app log through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk App for Splunk O11y Cloud does not neutralize user-supplied SignalFlow content before writing it to the app log.

Splunk Enterprise versions 9.4.x are not affected.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.