GHSA-4jmm-c6jw-g796: github.com/mickael-kerjean/filestash (CVE-2024-41255)

Package	Ecosystem	Affected	Fixed in
github.com/mickael-kerjean/filestash	Go	<=0.4	No fixed version yet

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Filestash versions up to and including 0.4 are configured to skip TLS certificate verification when using the FTPS protocol. An attacker positioned on the network path could perform a man-in-the-middle attack against those connections. No fix is listed; the source gives few further details.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.9	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N	GitHub Advisory Database

CISA KEV Not listed.
EPSS 0.0026, the 17th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:15 UTC First seen by agentprime
31 Oct 2026, 14:15 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.