CVE-2025-26391: SolarWinds Observability Self-Hosted

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

SolarWinds Observability Self-Hosted XSS Vulnerability. The SolarWinds Platform was susceptible to a XSS vulnerability that affects user-created URL fields. This vulnerability requires authentication from a low-level account.

Affected products

• SolarWinds Observability Self-Hosted: before 2025.4.1 (fixed in 2025.4.1)

Published 2025-11-18. Last modified 2026-06-17.