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CVE-2026-28318 — Actively Exploited: Serv-U (SolarWinds)

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.

CVE IDCVE-2026-28318
VendorSolarWinds
ProductServ-U
Vulnerability nameSolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
Date added2026-06-05
Remediation due2026-06-19
Known ransomware useUnknown
Required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
DescriptionSolarWinds 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.
SourceCISA Known Exploited Vulnerabilities

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