Source note · Setting up SSO for a Webex organization
CVE-2026-20184 (CVSS 9.8) was an SSO certificate validation flaw in Webex Services that affected only customers using trust anchors and required them to upload a new IdP SAML certificate to Control Hub.
Checked 2026-09-30
Only customers who use trust anchors were affected by this vulnerability.
- Vendor
- Cisco
- Product
- Webex Control Hub
- Subsystem
- sso-certificates
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- advisory as last updated 2026-04-16
- Checked
- 2026-09-30
Sources
- Cisco Webex Services Certificate Validation Vulnerability — Cisco PSIRT · tier 2 current vendor documentation · Summary; Affected Products; Workarounds
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up SSO for a Webex organization: source note webex-control-hub-sso-setup-trust-anchor-cve. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-control-hub-sso-setup-trust-anchor-cve
BibTeX
@misc{warmtransfer-claim-webex-control-hub-sso-setup-trust-anchor-cve,
title = {Setting up SSO for a Webex organization: source note webex-control-hub-sso-setup-trust-anchor-cve},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-control-hub-sso-setup-trust-anchor-cve},
note = {Source note webex-control-hub-sso-setup-trust-anchor-cve, checked 2026-09-30}
}