Vulnerability-Lookup

GHSA-XGM5-JH99-WC4V

Vulnerability from github – Published: 2026-06-10 18:31 – Updated: 2026-06-10 18:31

Details

In Splunk Enterprise versions below 10.2.4 and 10.0.7, and Splunk Cloud Platform versions below 10.4.2604.3 and 10.2.2510.14, an unauthenticated user could create or truncate arbitrary files through a PostgreSQL sidecar service endpoint.

The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials.

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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  "aliases": [
    "CVE-2026-20253"
  ],
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    "cwe_ids": [
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    "github_reviewed_at": null,
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  "id": "GHSA-xgm5-jh99-wc4v",
  "modified": "2026-06-10T18:31:46Z",
  "published": "2026-06-10T18:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20253"
    },
    {
      "type": "WEB",
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0603"
    }
  ],
  "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-2026-20253 (GCVE-0-2026-20253)

Vulnerability from cvelistv5 – Published: 2026-06-10 17:16 – Updated: 2026-06-16 03:55

Title

Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise

Summary

In Splunk Enterprise 10.2 versions below 10.2.4 and 10 versions below 10.0.7, an unauthenticated user could create or truncate arbitrary files through a PostgreSQL sidecar service endpoint. The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials. Splunk Enterprise versions 9.4 and earlier are not affected. If you cannot immediately upgrade to a fixed version, you can mitigate this vulnerability by disabling the PostgreSQL sidecar service.

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: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

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

References

1 reference

URL	Tags
https://advisory.splunk.com/advisories/SVD-2026-0603

Impacted products

1 product

Vendor	Product	Version
Splunk	Splunk Enterprise	Affected: 10.2 , < 10.2.4 (custom) Affected: 10.0 , < 10.0.7 (custom)

Date Public

2026-06-10 00:00

Credits

Alex Hordijk (hordalex)

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-XGM5-JH99-WC4V

CVE-2026-20253 (GCVE-0-2026-20253)

Tags

Sightings

Nomenclature