CVE-2026-107362 Server-Side Request Forgery in Malcolm
Attackers can exploit an unmodified upstream file upload component to force the server to fetch arbitrary URLs and read back the response content.
- 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-2026-107362?
CVE-2026-107362 is a high-severity server-side request forgery vulnerability in CISA Malcolm, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Malcolm file-upload component ships the upstream FilePond PHP server (pqina/filepond-server-php) largely unmodified: Dockerfile copies all upstream *.php files and Malcolm only overwrites config.php and submit.php. Upstream index.php exposes a fetch API route that instructs the server to download an arbitrary URL with curl (including FOLLOWLOCATION) and, for HEAD requests, stores the fetched response body in the upload container's transfer directory and returns the transfer ID to the caller, enabling full readback of the fetched content.
Weakness: CWE-918
Which versions are affected by CVE-2026-107362?
How do I fix CVE-2026-107362?
No fix has been published for CVE-2026-107362 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-2026-107362 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107362 exists.
Sources
Also known as GHSA-6x93-f29r-jwj6, GHSA-cvx2-hj33-vc4q.