VulnSocial

CVE-2026-67328General

LOWCVSS 8.6 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

@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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-02: 1Technical Details · 2026-08-02: 108-02
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Cyber Threat Observatory | Alan Turing Institute@TuringCyberObs
    General

    CVE-2026-67328 @better-auth/sso Potential account takeover through provider registration, orphaned accounts, unbound SAML assertions or reflected XSS in affected configurations Full analysis: https://github.com/alan-turing-institute/cyber-threat-observatory/blob/main/reports/2026-08-01/TIER_2_CVE-2026-67328.md #CyberSecurity #IdentitySecurity #VulnerabilityManagement

    Post summary

    The report highlights potential account takeover risks in better-auth/sso owing to orphaned accounts, unbound SAML assertions, and reflected XSS, but does not provide PoC, exploit details, or patch information.

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    59 followersView on X

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