CVE-2026-110864
Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the…
- Risk score
- 54/100
- CVSS
- 7.4 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 14 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers can obtain encrypted st…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.7.7 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.4 high
- Remotely exploitable without logging in
References
Original description
Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and cookie-stored state is used, attackers can obtain encrypted state for a fake profile with a victim's verified email to take over the account via implicit linking.
Last activity 14 Oct 2026. Patch Forecast updates every hour.