What is CVE-2026-28302?

CVE-2026-28302 is a critical-severity vulnerability in Solarwinds Serv-u, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.1/10. Published 2026-07-21.

How severe is CVE-2026-28302?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Solarwinds Serv-u

CVE-2026-28302

SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to privilege escalation and remote code execution as root. This issue requires group administrator access. The impact is lower in Windo…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Solarwinds Serv-u — versions 15.5.4 HF1 and below

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

psirt@solarwinds.com (vendor-advisory)
psirt@solarwinds.com (release-notes)

Frequently asked questions

What is CVE-2026-28302?: CVE-2026-28302 is a critical-severity vulnerability in Solarwinds Serv-u, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.1/10. Published 2026-07-21.
How severe is CVE-2026-28302?: Critical severity. CVSS v3 base score is 9.1 out of 10.