TI-2025-23819 Aliases CVE-2025-32782 GHSA-3988-q8q7-p787

Ash Authentication email link auto-click account confirmation vulnerability

LOW 24CWE-306Published 2025-04-15 · Updated 2025-04-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306.

Summary

Ash Authentication provides authentication for the Ash framework. The confirmation flow for account creation currently uses a GET request triggered by clicking a link sent via email. Some email clients and security tools (e.g., Outlook, virus scanners, and email previewers) may automatically follow these links, unintentionally confirming the account. This allows an attacker to register an account using another user’s email and potentially have it auto-confirmed by the victim’s email client. This does not allow attackers to take over or access existing accounts or private data. It is limited to account confirmation of new accounts only. This vulnerability is fixed in 4.7.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00316 24th percentileScored 2026-11-07

Fix Fixed ash_authentication (team-alembic): 4.7.0ash_authentication (Hex): 4.7.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
team-alembic	ash_authentication	before 4.7.0	4.7.0	Patch available	CNA
—	ash_authentication (Hex)	before 4.7.0	4.7.0	Patch available	GHSA-3988-q8q7-p787

ash_authentication Vendorteam-alembic Affected before 4.7.0 Fixed in 4.7.0 Patch available CNA
ash_authentication (Hex) Vendor— Affected before 4.7.0 Fixed in 4.7.0 Patch available GHSA-3988-q8q7-p787

Remediation

Fix · CNA ash_authentication (team-alembic) Fixed in 4.7.0
Fix · GHSA-3988-q8q7-p787 ash_authentication (Hex) Fixed in 4.7.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-32782
2026-10-03 Alias added: GHSA-3988-q8q7-p787

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2025-32782

Other 3

TI-2026-36668 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching CVSS 4.0CRITICAL 9.2
TI-2026-46782 Purpose-limited JWT accepted as full bearer authentication in AshAuthentication CVSS 4.0HIGH 7.6
TI-2026-59214 Revoked session accepted because the session jti is never checked in AshAuthentication and AshAuthentication Phoenix CVSS 4.0CRITICAL 9.1
TI-2026-58664 `require_confirmed_with` is not enforced on the action and fails open on an unreadable attribute in AshAuthentication CVSS 4.0CRITICAL 9.1
TI-2026-53751 Remember-me sign-in guard reads a session key that is never written in ash_authentication, allowing session replacement CVSS 4.0CRITICAL 9.1
TI-2026-57079 Magic link single-use tokens replayable via TOCTOU race in AshAuthentication CVSS 4.0CRITICAL 9.1

See all 23 →

Sources

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