CVE-2026-111936 Sigma File Manager through 2.2.0 SSRF via Extension Download Commands
Attackers can exploit SSRF in Sigma File Manager to read internal network responses via malicious extension downloads.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-111936?
CVE-2026-111936 is a medium-severity server-side request forgery vulnerability in aleksey-hoffman Sigma File Manager, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Sigma File Manager through 2.2.0 contains a server-side request forgery vulnerability because validate_remote_url() in security.rs never checks resolved IP addresses for extension download commands. A malicious extension or catalog entry can use hostnames resolving to loopback, private, or cloud metadata addresses to read internal responses via files written to the extension directory.
Weakness: CWE-918
Which versions are affected by CVE-2026-111936?
How do I fix CVE-2026-111936?
No fix has been published for CVE-2026-111936 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-2026-111936 being exploited?
There is no known exploitation of CVE-2026-111936 in the wild and no public exploit code.
Sources
Also known as GHSA-37hh-79v8-v8vr.