CVE-2026-28318: SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability

Added to the CISA Known Exploited Vulnerabilities catalog on 05 Jun 2026. Vendor: SolarWinds. Product: Serv-U.

SolarWinds Serv-U contains an uncontrolled resource consumption vulnerability that allows specially crafted POST requests using the Content-Encoding: deflate header to crash the Serv-U service without authentication.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due 19 Jun 2026)