Answer in brief
CVE-2026-67328 records a High severity (CVSS 8.1) vulnerability in @better-auth/sso before 1.6.21 Account Takeover via SSO. The current sources do not mark it as known exploited. The current feed maps better-auth/sso (generic), better-auth/sso (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps better-auth/sso (generic), better-auth/sso (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| better-auth/ssogeneric | >=0 <1.6.21 | 1.6.21 |
| better-auth/ssogeneric | >=1.7.0-beta.0 <1.7.0-beta.10 | 1.7.0-beta.10 |
Published upstream
Aug 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 3, 2026
@better-auth/sso versions before 1.6.21 contain multiple authentication bypass vulnerabilities in SSO provider handling that allow attackers to sign in as arbitrary users. Attackers can exploit domain verification parsing mismatches, orphaned provider accounts, unbound SAML assertions, or reflected XSS on logout endpoints to gain unauthorized session access and account takeover.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-67328 records a High severity (CVSS 8.1) vulnerability in @better-auth/sso before 1.6.21 Account Takeover via SSO. The current sources do not mark it as known exploited. The current feed maps better-auth/sso (generic), better-auth/sso (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps better-auth/sso (generic), better-auth/sso (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| better-auth/ssogeneric | >=0 <1.6.21 | 1.6.21 |
| better-auth/ssogeneric | >=1.7.0-beta.0 <1.7.0-beta.10 | 1.7.0-beta.10 |
Published upstream
Aug 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 3, 2026
@better-auth/sso versions before 1.6.21 contain multiple authentication bypass vulnerabilities in SSO provider handling that allow attackers to sign in as arbitrary users. Attackers can exploit domain verification parsing mismatches, orphaned provider accounts, unbound SAML assertions, or reflected XSS on logout endpoints to gain unauthorized session access and account takeover.
Quoted source text, attributed separately from HOL analysis.