CVE-2026-76268Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise
Updated under an hour ago ()
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It affects Splunk Enterprise and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 1.59%, higher than 75% of scored CVEs.
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In Splunk Enterprise versions below 10.4.3 and 10.2.7, an unauthenticated user with network access to the Patroni Representational State Transfer (REST) Application Programming Interface (API) on a search head cluster member could execute attacker-controlled operating-system commands. The vulnerability is possible because this interface does not require authentication for critical configuration operations. For more information see Sidecar configuration settings (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 1.59% (percentile 75)
- Assigned by
- cisco
- NVD analysis
- Analyzed
- Record last updated
- Oct 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Splunk Splunk Enterprise splunk:enterprise (from the name) | from 10.4 before 10.4.3; from 10.2 before 10.2.7 | CNA record |
splunk splunk splunk:splunk | from 10.2.0 before 10.2.7; from 10.4.0 before 10.4.3 | NVD |
References
- https://advisory.splunk.com/advisories/SVD-2026-1001vendor-advisory, mitigation
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.