Improper Authorization Affecting @better-auth/sso package, versions >=1.7.0-rc.2 <1.7.0>=1.7.0 <1.7.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published18 Oct 2026
- disclosed15 Oct 2026
- creditmanus-use
Introduced: 15 Oct 2026
NewCVE-2026-110863 (opens in a new tab)How to fix?
Upgrade @better-auth/sso to version 1.7.0, 1.7.3 or higher.
Overview
@better-auth/sso is a SSO plugin for Better Auth
Affected versions of this package are vulnerable to Improper Authorization via the deleteSSOProvider route handler, which previously did not receive the options context required to enforce provider lifecycle guards. An authenticated attacker can delete SSO providers they do not own or are not authorized to manage by sending a delete request without the mutation guard being applied, leading to unauthorized modification of identity provider configurations.