CVE-2025-26391: SolarWinds Observability Self-Hosted XSS Vulnerability. The SolarWinds Platform was susceptible to a XSS vulnerability…
CVE-2025-26391 · Severity: medium · CVSS 5.4 · Published 2025-11-18
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-26391 being exploited in the wild.
How severe is CVE-2025-26391?
Medium severity, with a CVSS score of 5.4, published 18 November 2025.
Which products and versions are affected?
SolarWinds Observability Self-Hosted. The advisory does not name versions.
Is there a fix for CVE-2025-26391?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-26391?
Check whether you run SolarWinds Observability Self-Hosted. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.