Incorrect authorization in WeeChat - #VU147391
Published: September 8, 2026
Vulnerability identifier: #VU147391
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to start a DCC file transfer without user manual acceptance.
The vulnerability exists due to incorrect authorization in the xfer plugin when resuming a DCC file transfer. A remote attacker can resume a DCC file transfer to start it without user manual acceptance.
Affected software
WeeChat
Remediation
Install security update from vendor's website.
WeeChat - update to 4.10.1