Vulnerability-Lookup

GHSA-RXJH-RJ2V-47GX

Vulnerability from github – Published: 2026-10-07 21:33 – Updated: 2026-10-07 21:33

Details

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.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76268"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-07T21:17:17Z",
    "severity": "CRITICAL"
  },
  "details": "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.\n\nSplunk Enterprise versions 10.0.x and 9.4.x are not affected.",
  "id": "GHSA-rxjh-rj2v-47gx",
  "modified": "2026-10-07T21:33:30Z",
  "published": "2026-10-07T21:33:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76268"
    },
    {
      "type": "WEB",
      "url": "https://advisory.splunk.com/advisories/SVD-2026-1001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-76268 (GCVE-0-2026-76268)

Vulnerability from cvelistv5 – Published: 2026-10-07 20:46 – Updated: 2026-10-08 13:36

Title

Missing Authentication for Critical Function in the Patroni REST API in Splunk Enterprise

Summary

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 13:36 UTC

CWE

CWE-306 - The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Assigner

cisco mitre root Scorecard

References

1 reference

URL	Tags
https://advisory.splunk.com/advisories/SVD-2026-1001

Impacted products

1 product

Vendor	Product	Version
Splunk	Splunk Enterprise	Affected: 10.4 , < 10.4.3 (custom) Affected: 10.2 , < 10.2.7 (custom)

Date Public

2026-10-07 00:00

Credits

Gabriel Nitu, Splunk

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "metrics": [
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                "id": "CVE-2026-76268",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T13:36:26.303970Z",
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          "value": "Turn off the PostgreSQL sidecar by setting `disabled = true` in the `[postgres]` stanza of `$SPLUNK_HOME/etc/system/local/server.conf` if you do not use Edge Processor, OpAmp, or SPL2 data pipelines. Restart Splunk Enterprise to apply the change. 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) and [server.conf](https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/configuration-file-reference/10.2.7-configuration-file-reference/server.conf) in the Splunk documentation."
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-RXJH-RJ2V-47GX

CVE-2026-76268 (GCVE-0-2026-76268)

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