CVE-2026-83744 invoiceninja Invoice Ninja invoices Endpoint Purify.php isHostSafe server-side request forgery
Remote attackers can exploit an SSRF vulnerability in Invoice Ninja's invoice endpoint to access internal resources or bypass security controls.
- 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-2026-83744?
CVE-2026-83744 is a medium-severity server-side request forgery vulnerability in invoiceninja Invoice Ninja, published on 1 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in invoiceninja Invoice Ninja up to 5.13.26. This vulnerability affects the function Purify::isHostSafe of the file app/Services/Pdf/Purify.php of the component invoices Endpoint. The manipulation of the argument notes leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-918
Which versions are affected by CVE-2026-83744?
How do I fix CVE-2026-83744?
No fix has been published for CVE-2026-83744 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-2026-83744 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-83744 exists.
Sources
Also known as GHSA-wgqw-w7f3-xcj4.