Clickjacking Vulnerability in Transmission WebUI and RPC Responses
CVE-2026-38978

5.3MEDIUM

Key Information:

Vendor

Transmission

Status
Transmission
Vendor
CVE Published:
2 June 2026

What is CVE-2026-38978?

A clickjacking vulnerability has been identified in the browser-facing WebUI and RPC response paths of Transmission version 4.1.1. This weakness could allow an attacker to trick users into clicking on malicious elements, potentially leading to unintended actions on the user's behalf. As a precaution, users are advised to update their installations to the latest version to mitigate the risk associated with this vulnerability.

References

https://github.com/transmission/transmission/pull/8747
https://github.com/transmission/transmission/commit/6b24c...
https://github.com/transmission/transmission/issues/8726

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.