# CVE-2026-76267: Log Injection through the REST API in Splunk App for Splunk O11y Cloud

> CVE-2026-76267: Log Injection through the REST API in Splunk App for Splunk O11y Cloud. CVSS 4.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-76267
Last updated: 2026-10-14T12:21:19Z

- Published: 2026-10-07 20:46 UTC · Updated: 2026-10-14 12:21 UTC · Assigner: cisco
- CVSS: 4.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS: 0.22%, 13th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-117

## Description

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.

## Affected vendors and products

- Splunk: Splunk Enterprise

## Tracked companies

- [Splunk](https://rewindex.com/company/splunk.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-76267)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-76267)
- [https://advisory.splunk.com/advisories/SVD-2026-1001](https://advisory.splunk.com/advisories/SVD-2026-1001)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-76267 · Markdown: https://rewindex.com/cve/CVE-2026-76267.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-76267 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:13.351Z