PT-2026-94297

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.8.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description An inefficient algorithmic complexity issue allows an unauthenticated attacker to cause CPU and memory exhaustion by...

PT-2026-94289

Name of the Vulnerable Software and Affected Versions ash authentication versions 3.10.5 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description Improper authentication allows an attacker with a sign-in token for one authenticated resource to be signed in as a user o...

PT-2026-94298

Name of the Vulnerable Software and Affected Versions ash authentication versions 3.9.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description A Time-of-check Time-of-use TOCTOU Race Condition occurs when a magic link is configured with single use token?. This allow...

PT-2026-94285

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.2.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description Improper verification of cryptographic signatures in AshAuthentication allows a caller of the token revocation action to...

PT-2026-94296

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.12.0 through 4.14.x ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description AshAuthentication contains an issue where readers of the audit store can recover client IP addresses that the audit log...

PT-2026-94293

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.6.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description Insufficient session expiration allows an attacker who obtains a victim's OAuth2 state value to replay the callback and sig...

PT-2026-94301

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.9.1 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 ash authentication phoenix versions 2.10.0 through 2.17.3 ash authentication phoenix versions 3.0.0-rc.0 through 3.0.0-rc.10 Descriptio...

PT-2026-94355

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.14.0 through 4.14.x ash authentication versions 5.0.0-rc.10 through 5.0.0-rc.13 Description An improper authentication issue allows an attacker to sign in as another user by linking an OAuth2 identity to an accoun...

PT-2026-94299

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.3.8 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description An authentication bypass allows unconfirmed users to obtain a session, bypassing mandatory email confirmation requirements...

PT-2026-95162

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.2.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description A session fixation issue allows an attacker to maintain an authenticated session if they can plant a session identifier in ...

PT-2026-94300

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.2.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description An unauthenticated attacker can forge application log entries by submitting a password reset identity containing newlines o...

PT-2026-94294

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.5.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description An authorization bypass allows an authenticated attacker to overwrite and confirm another user's email address to take over...

PT-2026-95161

Name of the Vulnerable Software and Affected Versions ash authentication versions 4.10.0 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Description An authentication bypass by spoofing allows an attacker to replace a victim's authenticated session with their own account...

PT-2026-94373

Name of the Vulnerable Software and Affected Versions ash authentication versions 5.0.0-rc.10 through 5.0.0-rc.13 Description An authentication bypass by spoofing exists in the dynamic oidc strategy. This allows an attacker using one identity-provider connection to be signed in as a local user...

PT-2026-86918

Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash authentication oauth2 server allows an unauthenticated attacker to exhaust database storage and memory. The /authorize endpoint is unauthenticated by design. With Client ID Metadata Documents enabled, resolve...

EUVD-2026-36714

AshAuthentication vulnerable to OAuth2/OIDC account takeover via email-based user matching...

Exploit for CVE-2026-49757

CVE-2026-49757 — AshAuthentication OAuth2/OIDC Account Takeove...

CVE-2026-49757

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

CVE-2026-49757

AshAuthentication (versions before 4.14.0 and before 5.0.0-rc.10) is vulnerable to an authentication bypass where OAuth2/OIDC sign-in matches local users by email rather than the issuer/sub identity. An attacker able to provide a victim’s email to an OAuth provider could be signed in to the victi...

PT-2026-49202

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.1.0 through 4.13.x ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.9 Description An authentication bypass by spoofing allows account takeover of local users during OAuth2 or OIDC sign-in. The issue occurs...