Live › vulnerability › CVE-2026-28318
Go to dashboardSolarWinds Serv-U has an uncontrolled resource consumption bug: specially crafted unauthenticated POST requests with a Content-Encoding: deflate header crash the Serv-U service. An attacker needs no login to take the file transfer service down, and CISA lists it as actively exploited.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| solarwinds serv-u | vendor | < 15.5.4 | 15.5.4 |
| solarwinds serv-u | vendor | = 15.5.4 | – |
| SolarWinds Serv-U | vendor | – | – |
Check whether you run SolarWinds Serv-U and which build it is, using the Serv-U admin console or the installed version.
Apply the vendor mitigations per SolarWinds instructions, or discontinue use of Serv-U if mitigations are unavailable (CISA required action).
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA 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.
This page as .md · .json · in your agent: get_signal("CVE-2026-28318")
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