SolarWinds Observability Self-Hosted Cross-Site Scripting Vulnerability (CVE-2026-28330)

Summary

SolarWinds Observability Self-Hosted was found to be affected by a stored Cross-Site Scripting (XSS) vulnerability that allows authenticated attackers to inject malicious content or JavaScript, which is displayed or executed in the browsers of other authenticated users who access the affected pages.

Affected Products

SolarWinds Observability Self-Hosted 2026.2.3 and below

Fixed Software Release

SolarWinds Observability Self-Hosted 2026.4

Acknowledgments

Dimitrios Titos from NATO Cyber Security Centre (NCSC)

Georgios Sotiriadis from NATO Cyber Security Centre (NCSC)