Major incident

Vercel: SAML Single Sign-On (SSO) errors

Jul 16, 2026, 08:39 UTC

started

10:45 UTC

resolved

2 h 06 min

duration

Affected: SAML Single Sign-On

Current status of Vercel: Operational — live Vercel status

Timeline

Jul 16, 2026, 08:39 UTC
investigating
We are investigating SAML Single Sign-On (SSO) errors, leading to inability to login using SAML/SSO or access SSO-protected teams through the Vercel dashboard and CLI.
Jul 16, 2026, 10:23 UTC
monitoring
The root cause of the SAML Single Sign-On (SSO) errors has been identified and a fix has been implemented. We are seeing error rates decrease. Users should be able to login with SAML/SSO or access their SSO-protected teams through the Vercel dashboard and CLI again. We are continuing to monitor.
Jul 16, 2026, 10:45 UTC
resolved
This incident has been resolved.

Updates as published by Vercel (original).

This was part of a wider event: 42 services reported incidents within the hour.

Iterable 09:27 UTC · Iterable Application Issues in US Datacenter
Porter 09:25 UTC · Authentication issues
RevenueCat 09:13 UTC · Some users unable to login via single-sign-on (SSO)
Kameleoon 09:02 UTC · Intermittent Slowness and Instability on Kameleoon Platform (app.kameleoon.com)
MIT 09:00 UTC · Instructure
Rippling 09:00 UTC · Access denied
Poool 08:59 UTC · Engage Backend Issues
Plaid 08:48 UTC · Elevated dashboard.plaid.com error rates
Weglot 08:43 UTC · Issues affecting login with SAML
DataCamp 08:42 UTC · Loading issues across the platform
Ashby 08:40 UTC · Some SSO sign-ins may fail
Blackboard 08:33 UTC · Blackboard SaaS LMS Outage - Global
Scalapay 08:31 UTC · Elevated Errors
FusionAuth 08:29 UTC · Investigating outage affecting multiple regions
Synthesia 08:27 UTC · Login Issues