TI-2026-76442 Aliases CVE-2026-111936 GHSA-37hh-79v8-v8vr

Server-side request forgery in Sigma File Manager extension downloads

LOW 24CWE-918Published 2026-10-19 · Updated 2026-10-22

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Sigma File Manager through 2.2.0 contains a server-side request forgery flaw (CWE-918) because validate_remote_url() never checks resolved IP addresses for extension download commands. A malicious extension or catalog entry can use hostnames that resolve to loopback, private or cloud metadata addresses to read internal responses through files written to the extension directory.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0026 17th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
aleksey-hoffman	Sigma File Manager	up to 2.2.0	—	No fix listed	CNA

Sigma File Manager Vendoraleksey-hoffman Affected up to 2.2.0 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for Sigma File Manager.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-19 Threatist record created from CVE-2026-111936
2026-10-19 Alias added: GHSA-37hh-79v8-v8vr
2026-10-22 CISA SSVC decision points changed

References

Patch 1

https://github.com/aleksey-hoffman/sigma-file-manager/commit/45cedf892f800c6b140b0e3cd6e55fdbcf2cf479

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences