CVE-2026-38978

Publication date 3 June 2026

Last updated 8 June 2026

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

transmission through 4.1.1 was found to have a clickjacking weakness in the browser-facing WebUI and RPC response paths.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
transmission	26.04 LTS resolute	Fixed 4.1.1+dfsg-1ubuntu1.1
	25.10 questing	Fixed 4.1.0~beta2+dfsg-3ubuntu1.1
	24.04 LTS noble	Fixed 4.0.5-1ubuntu0.1
	22.04 LTS jammy	Fixed 3.00-2ubuntu2.2
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
transmission	Upstream: 6b24c1c Upstream: e51d77e

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-8404-1
Transmission vulnerability
8 June 2026

Other references

https://www.cve.org/CVERecord?id=CVE-2026-38978

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