CVE-2025-4754

Summary

Insufficient Session Expiration vulnerability in team-alembic ash_authentication_phoenix allows a session token captured before sign-out to remain usable afterwards.

The default sign_out/2 that AshAuthentication.Phoenix.Controller injects into an application's auth controller only calls Plug.Conn.clear_session/1. It never revokes the stored session or bearer tokens, so a token obtained before sign-out, through script injection, interception or device theft, keeps authenticating until its own expiry. Changing the password still revokes it.

This issue affects ash_authentication_phoenix: from 0.1.0 before 2.10.0.

Affected Software

Weaknesses

• CWE-613: CWE-613 Insufficient Session Expiration

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/team-alembic/ash_authentication_phoenix/security/advisories/GHSA-f7gq-h8jv-h3cq
• https://cna.erlef.org/cves/CVE-2025-4754.html
• https://osv.dev/vulnerability/EEF-CVE-2025-4754
• https://github.com/team-alembic/ash_authentication_phoenix/pull/634
• https://github.com/team-alembic/ash_authentication_phoenix/commit/05ab4f438bf0cd0fdfb279d912bbe0d2c3620e02
• https://github.com/team-alembic/ash_authentication_phoenix/commit/a3253fb4fc7145aeb403537af1c24d3a8d51ffb1

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