EEF-CVE-2026-82761 Magic link single-use tokens replayable via TOCTOU race in AshAuthentication

Summary 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 mean...

CVE-2026-82761

AshAuthentication (by team-alembic) is vulnerable to a TOCTOU race condition that allows concurrent redemptions of a single-use magic link token. The sign-in flow verifies the JWT via Jwt.verify/4 and revokes it only in an after_action or after_transaction hook, after the sign-in has already comm...

CVE-2026-82761 Magic link single-use tokens replayable via TOCTOU race in AshAuthentication

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-2026-82761

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-2026-82761 Magic link single-use tokens replayable via TOCTOU race in AshAuthentication

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-2026-82685

AshAuthentication (ash_authentication library by team-alembic) suffers from an Authorization Bypass Through User-Controlled Key in AddOn.Confirmation.ConfirmChange. The function verifies the token's signature and act claim but never compares the sub claim against changeset.data, so a confirmation...

CVE-2026-82685 Confirmation token accepted on any record in AshAuthentication

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...

EUVD-2026-81479

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...

EEF-CVE-2026-82685 Confirmation token accepted on any record in AshAuthentication

Summary 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...

CVE-2026-82685 Confirmation token accepted on any record in AshAuthentication

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-2026-82685

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-2026-82685 Confirmation token accepted on any record in AshAuthentication

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-2026-82760 Superlinear base62 decoding exhausts CPU and memory in AshAuthentication API key sign-in

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-2026-82760 Superlinear base62 decoding exhausts CPU and memory in AshAuthentication API key sign-in

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-2026-82760 Superlinear base62 decoding exhausts CPU and memory in AshAuthentication API key sign-in

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-2026-82760

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...

EEF-CVE-2026-82760 Superlinear base62 decoding exhausts CPU and memory in AshAuthentication API key sign-in

Summary 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 in...

CVE-2026-82760

AshAuthentication (Elixir library by team-alembic) is vulnerable to CPU and memory exhaustion via superlinear base62 decoding in the API key sign-in flow. The root cause is in AshAuthentication.Base.decode62/1, which recomputes Integer.pow(62, index) at every character position instead of accumul...

CVE-2026-82759 Reversible IP address pseudonymisation in AshAuthentication audit log hash mode

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 ...

EUVD-2026-81477

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 ...