Input validation error in Kiwi - #VU139249
Published: July 23, 2026
Vulnerability identifier: #VU139249
CSH Severity: Medium
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to uploaded content validation bypass at chunk boundaries. A remote user can store a file containing active JavaScript content.
Affected software
Kiwi
Remediation
Install updates from vendor's website.
Kiwi - update to 16.2