CVE-2026-28295

Summary

A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit this vulnerability by providing an arbitrary IP address and port in its passive mode (PASV) response. The client unconditionally trusts this information and attempts to connect to the specified endpoint, allowing the malicious server to probe for open ports accessible from the client's network.

Affected Software

Weaknesses

• CWE-918: Server-Side Request Forgery (SSRF)

Workarounds

To mitigate this issue, users should avoid connecting to untrusted or unknown FTP servers when using applications that rely on the GVfs FTP backend. This vulnerability requires the client to interact with a malicious FTP server for exploitation.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://access.redhat.com/security/cve/CVE-2026-28295
• https://bugzilla.redhat.com/show_bug.cgi?id=2443004

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