CVE-2026-28318

SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability

SolarWinds — Serv-U

Added to KEV catalog: 5 June 2026
Federal remediation due date: 19 June 2026
Weakness classification (CWE): CWE-400

CISA Description

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.

Notes

https://www.solarwinds.com/trust-center/security-advisories/cve-2026-28318 ; https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm#link7 ; https://nvd.nist.gov/vuln/detail/CVE-2026-28318

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