CVE-2026-82723 Actor record with password digest stored in AshAuthentication audit log entries
Attackers with audit store access can retrieve password digests from logs, enabling offline password attacks against user accounts.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-82723?
CVE-2026-82723 is a low-severity vulnerability in team-alembic ash_authentication, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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 audit_log add-on builds each entry's extra_data in AshAuthentication.AddOn.AuditLog.Auditor.build_extra_data/4, which takes :actor from the action callback context verbatim. Any audited action invoked with actor: set to a user record therefore deposits that record, including its hashed_password attribute, into the audit entry. The same module already collapses the audited identity to an opaque string via AshAuthentication.user_to_subject/1 and filters params against the strategy's configured allow-list, so the actor is the only stored value that reaches the audit store unfiltered. Marking the attribute sensitive?: true does not help, because that redacts inspect/1 output rather than JSON encoding or raw-term storage.
There is no attacker-controlled trigger and no network disclosure path: entries accumulate from ordinary authenticated activity, and an attacker's own requests deposit only their own digest. Exploitation requires independent read access to the audit store, such as database credentials, an audit role, a backup, or a log shipper, at which point the digests support offline password attack against every active account. Whether the material persists depends on the data layer, since raw-term stores keep it verbatim while a SQL store raises Protocol.UndefinedError and drops the entry unless the user resource derives Jason.Encoder.
This issue affects ash_authentication: from 4.12.0 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.2.
Weakness: CWE-532
Which versions are affected by CVE-2026-82723?
1 open source package ship an affected version, including ash_authentication.
| Package | Affected | Fixed in |
|---|---|---|
ash_authentication Hex | From 4.12.0 | 4.15.0, 5.0.0-rc.2 |
How do I fix CVE-2026-82723?
Upgrade ash_authentication to a fixed version for your release line: 4.15.0 or 5.0.0-rc.2.
Is CVE-2026-82723 being exploited?
There is no known exploitation of CVE-2026-82723 in the wild and no public exploit code.
Sources
Also known as EEF-CVE-2026-82723, GHSA-59wx-q3r8-ghv4.