Log Injection through the REST API in Splunk App for Splunk O11y Cloud (Splunk Splunk Enterprise)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-117 — Improper Output Neutralization for Logs
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | cisco |
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-94619
- GCVE · GCVE-0-2026-76267
CERT-FR advisories
- CERTFR-2026-AVI-1281 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*≥ 10.0.0 < 10.0.10cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*≥ 10.2.0 < 10.2.7cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*≥ 10.4.0 < 10.4.3
Affected products
| Product | Versions |
|---|---|
| Splunk · Splunk Enterprise | affected 10.4 < 10.4.3 ; affected 10.2 < 10.2.7 ; affected 10.0 < 10.0.10 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |