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CVE-2026-28323: SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability

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CRITICAL 9.8REMOTEUPGRADE

CVE-2026-28323 is a critical-severity flaw (CVSS 9.8) affecting web help desk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SolarWinds Web Help Desk is found to be affected by a SAML authentication bypass vulnerability. This requires the SAML 2.0 authentication method to be enabled.

Why this priority

  • Critical severity
  • CISA SSVC: automatable with total technical impact
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.0% (top 37%)
CISA exploited listNo
WeaknessCWE-287
Published2026-07-30
Last modified2026-10-23
Publisher (CNA): SolarWinds · Vendor: solarwinds

Am I affected?

Timeline

solarwinds web help desk UPGRADE
Affected: < 2026.2.1
Fixed in: 2026.2.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy web-help-desk || rpm -q web-help-desk || web-help-desk --version
2. UPGRADE to 2026.2.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade web-help-desk
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade web-help-desk
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · pspp · FIXED · 2.1.3-2.fc46 · FEDORA-2026-0d6444911b · source
sudo dnf upgrade --advisory=FEDORA-2026-0d6444911b
Fedora ELN · barman · FIXED · 3.20.1-3.eln159 · FEDORA-2026-45ecf042c2 · source
sudo dnf upgrade --advisory=FEDORA-2026-45ecf042c2
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

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