GCVE-110-NCSC-2026-198

Advisory PublishedCVSS 9.8/10

Vulnetix · Advisory published June 15, 2026

Splunk Enterprise and Splunk Cloud Platform versions prior to 10.2.4 and 10.4.2604.3 respectively have a vulnerability in an unauthenticated PostgreSQL sidecar service endpoint allowing arbitrary file creation or truncation by unauthenticated users.

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Weaknesses (CWE)

CWE-306Missing Authentication for Critical FunctionCWE-502Deserialization of Untrusted DataCWE-918Server-Side Request Forgery (SSRF)CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Risk Scores

CVSS 3.1

9.8/10

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

Affected Products

Vendor	Product	Versions	Platforms
Splunk	vers:unknown/*	—	—

Aliases

CVE-2026-20251 CVE-2026-20252 CVE-2026-20253 CVE-2026-20254 CVE-2026-20255 CVE-2026-20256 CVE-2026-20257 CVE-2026-20258 CVE-2026-20259

References

advisory

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