CVE-2026-71244 Paperless-ngx - Mail Account Test Connection Leaks Stored IMAP/OAuth Credentials to Attacker-Controlled Host
Attackers can leak stored IMAP/OAuth credentials by manipulating server parameters in the mail account test connection feature.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71244?
CVE-2026-71244 is a medium-severity server-side request forgery vulnerability in paperless-ngx, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Paperless-ngx's MailAccountViewSet.test action, when called with an existing account's ID and a masked password field, reuses the stored password, account_type, refresh_token, and expiration from that existing account while allowing the caller to supply a different imap_server, imap_port, and imap_security in the same request.
Weakness: CWE-918
Which versions are affected by CVE-2026-71244?
How do I fix CVE-2026-71244?
No fix has been published for CVE-2026-71244 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-71244 being exploited?
There is no known exploitation of CVE-2026-71244 in the wild and no public exploit code.
Sources
Also known as GHSA-666w-8983-6664.