CVE-2026-84268 | BDVDB-2026-367151 Detail

Description#

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.

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Exploit#

History#

1. Version 12026-09-01Record published in the CVE List.
2. Version 22026-11-04Most recent update recorded in the CVE List.