CVE-2026-76267
Log Injection through the REST API in Splunk App for Splunk O11y Cloud
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-117 |
| Vendor | splunk |
| Product | splunk enterprise |
| Published | Oct 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Splunk / Splunk Enterprise
10.4 < 10.4.3 10.2 < 10.2.7 10.0 < 10.0.10
References
Credits
Gabriel Nitu, Splunk