CVE-2026-88952: Improper Authentication

Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker to be signed in as another user by linking an OAuth2 identity to an account that is not theirs. AshAuthentication.Strategy.OAuth2.UserResolver.resolve/3 matches an existing account using the register action...

CVE-2026-86533: Insufficient Session Expiration

Insufficient Session Expiration vulnerability in team-alembic AshAuthentication and AshAuthentication Phoenix allows a revoked session to remain fully authenticated. A resource configured with sessionidentifier :jti and requiretokenpresenceforauthentication? disabled stores its session value as :...

CVE-2026-86522: Improper Output Neutralization for Logs

Improper Output Neutralization for Logs vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to forge application log entries by submitting a password reset identity containing newlines or control characters...

CVE-2026-85500: Authentication Bypass by Primary Weakness

Authentication Bypass by Primary Weakness vulnerability in team-alembic AshAuthentication allows an unconfirmed user to obtain a session, defeating a mandatory email confirmation requirement. AshAuthentication.Strategy.Password.Actions.checkuser/2 decides whether the attribute named by...

CVE-2026-82761: Time-of-check Time-of-use (TOCTOU) Race Condition

Time-of-check Time-of-use TOCTOU Race Condition vulnerability in team-alembic AshAuthentication allows an attacker holding a leaked magic link to replay its single-use token and authenticate as the target subject. A magic link configured with singleusetoken?, which is the default, is meant to be...

CVE-2026-82760: Inefficient Algorithmic Complexity

Inefficient Algorithmic Complexity vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to exhaust CPU and memory via an oversized base62 segment in a submitted API key. AshAuthentication.Base.decode62/1 in lib/ashauthentication/base.ex splits its argument into one...

CVE-2026-82759: Use of a One-Way Hash with a Predictable Salt

Use of a One-Way Hash with a Predictable Salt vulnerability in team-alembic AshAuthentication allows readers of the audit store to recover the client IP addresses that the audit log add-on's :hash privacy mode is meant to pseudonymise. AshAuthentication.AddOn.AuditLog.IpPrivacy.haship/1 computes ...

CVE-2026-82723: Insertion of Sensitive Information into Log File

Insertion of Sensitive Information into Log File vulnerability in team-alembic AshAuthentication allows disclosure of user password digests to readers of the audit store. The auditlog add-on builds each entry's extradata in AshAuthentication.AddOn.AuditLog.Auditor.buildextradata/4, which takes...

CVE-2026-82685: Authorization Bypass Through User-Controlled Key

Authorization Bypass Through User-Controlled Key vulnerability in team-alembic AshAuthentication allows an authenticated attacker to overwrite and confirm another user's email address, and so take over that account. A confirmation token issued to one user is accepted on any other user's record...

CVE-2026-81637: Insufficient Session Expiration

Insufficient Session Expiration vulnerability in team-alembic AshAuthentication allows an attacker who obtains a victim's OAuth2 state value to replay the callback and sign that victim into an attacker-controlled account. AshAuthentication.Strategy.OAuth2.Plug.callback/2 clears the stored...

CVE-2026-80218: Improper Authentication

Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker holding a sign-in token for one authenticated resource to be signed in as a user of a different resource. AshAuthentication.Strategy.Password.SignInWithTokenPreparation.extractprimarykeysfromsubject/2 parse...

CVE-2026-78223: Improper Verification of Cryptographic Signature

Improper Verification of Cryptographic Signature vulnerability in team-alembic AshAuthentication allows a caller of the token revocation action to neutralise a revocation or write arbitrary rows into the token resource. AshAuthentication.TokenResource.RevokeTokenChange.change/3 reads the :token...

PT-2026-94292

Name of the Vulnerable Software and Affected Versions ash authentication phoenix versions 1.7.0 through 2.17.3 ash authentication phoenix versions 3.0.0-rc.0 through 3.0.0-rc.10 ash authentication versions 3.10.5 through 4.14.9 ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.13 Descriptio...

GHSA-777C-2FXX-QR28 AshAuthentication vulnerable to OAuth2/OIDC account takeover via email-based user matching

Summary AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address rather than by the OpenID Connect iss/sub claim combination. A provider login presenting a victim's email including an unverified, reused, or emailverified: false account resolved to and signed i...

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

Summary AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address rather than by the OpenID Connect iss/sub claim combination. A provider login presenting a victim's email including an unverified, reused, or emailverified: false account resolved to and signed i...

CVE-2026-66882

Improper Neutralization of Input During Web Page Generation XSS vulnerability in team-alembic AshAuthentication allows reflected cross-site scripting via the confirmation and magic link interaction forms. When a strategy is configured with requireinteraction? set to true, AshAuthentication serves...

CVE-2026-65633

Improper Authentication vulnerability in team-alembic AshAuthentication allows purpose-limited JWTs to be replayed as full bearer API credentials when a resource uses stateless bearer-token verification. The bearer-token authentication helper AshAuthentication.Plug.Helpers.retrievefrombearer/3...

EEF-CVE-2026-65633 Purpose-limited JWT accepted as full bearer authentication in AshAuthentication

Summary Improper Authentication vulnerability in team-alembic AshAuthentication allows purpose-limited JWTs to be replayed as full bearer API credentials when a resource uses stateless bearer-token verification. The bearer-token authentication helper...

CVE-2026-65633 Purpose-limited JWT accepted as full bearer authentication in AshAuthentication

Improper Authentication vulnerability in team-alembic AshAuthentication allows purpose-limited JWTs to be replayed as full bearer API credentials when a resource uses stateless bearer-token verification. The bearer-token authentication helper AshAuthentication.Plug.Helpers.retrievefrombearer/3...

CVE-2026-65633

AshAuthentication (team-alembic) contains an improper authentication flaw where the stateless bearer-token helper retrieve_from_bearer/3 fails to verify that a JWT's purpose claim equals user. When a resource uses the default require_token_presence_for_authentication?: false, purpose-limited toke...