CVE catalog

CVE-2026-38978

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

[CVE catalog]

Severity: Medium · CVSS 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Published: Jun 2, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.30% · Oct 25, 2026

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

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	transmission	sid	`4.1.3+dfsg-1`	fixed
Debian	transmission	forky	`4.1.3+dfsg-1`	fixed
Debian	transmission	trixie	`4.1.0~beta2+dfsg-3+deb13u2`	fixed
Debian	transmission	bookworm	`3.00-2.1+deb12u1`	vulnerable
Cpe	transmission	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission-cli	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission-common	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission-daemon	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission-gtk	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission-qt	Not reported	`4.0.5-1ubuntu0.1`	fixed
Cpe	transmission	Not reported	Not reported	vulnerable
Opensuse	transmission	leap 16.0	`4.0.6-bp160.2.1`	fixed
Ubuntu	transmission	22.04	`3.00-1ubuntu2`	vulnerable
Ubuntu	transmission	22.04	`3.00-1ubuntu5`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu1`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2.1`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2.2`	fixed
Ubuntu	transmission	24.04	`4.0.2-1ubuntu3`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build3`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build4`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build5`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1ubuntu0.1`	fixed
Ubuntu	transmission	25.10	`4.0.6+dfsg-3ubuntu2`	vulnerable
Ubuntu	transmission	25.10	`4.1.0~beta2+dfsg-3ubuntu1`	vulnerable
Ubuntu	transmission	25.10	`4.1.0~beta2+dfsg-3ubuntu1.1`	fixed
Ubuntu	transmission	26.04	`4.1.0~beta2+dfsg-3ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta2+dfsg-3ubuntu2`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta4+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta5+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.1+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.1+dfsg-1ubuntu1.1`	fixed
Ubuntu	transmission	16.04	`2.84-1ubuntu1`	vulnerable
Ubuntu	transmission	16.04	`2.84-2`	vulnerable
Ubuntu	transmission	16.04	`2.84-3`	vulnerable
Ubuntu	transmission	16.04	`2.84-3ubuntu1`	vulnerable
Ubuntu	transmission	16.04	`2.84-3ubuntu2`	vulnerable
Ubuntu	transmission	16.04	`2.84-3ubuntu3`	vulnerable
Ubuntu	transmission	16.04	`2.84-3ubuntu3.1`	vulnerable
Ubuntu	transmission	18.04	`2.92-2ubuntu3`	vulnerable
Ubuntu	transmission	18.04	`2.92-3ubuntu1`	vulnerable
Ubuntu	transmission	18.04	`2.92-3ubuntu2`	vulnerable
Ubuntu	transmission	20.04	`2.94-2ubuntu1`	vulnerable
Ubuntu	transmission	20.04	`2.94-2ubuntu2`	vulnerable
Ubuntu	transmission	20.04	`2.94-2ubuntu3`	vulnerable
Ubuntu	transmission	22.04	`3.00-1ubuntu2`	vulnerable
Ubuntu	transmission	22.04	`3.00-1ubuntu5`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu1`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2.1`	vulnerable
Ubuntu	transmission	22.04	`3.00-2ubuntu2.2`	fixed
Ubuntu	transmission	24.04	`4.0.2-1ubuntu3`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build3`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build4`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1build5`	vulnerable
Ubuntu	transmission	24.04	`4.0.5-1ubuntu0.1`	fixed
Ubuntu	transmission	25.10	`4.0.6+dfsg-3ubuntu2`	vulnerable
Ubuntu	transmission	25.10	`4.1.0~beta2+dfsg-3ubuntu1`	vulnerable
Ubuntu	transmission	25.10	`4.1.0~beta2+dfsg-3ubuntu1.1`	fixed
Ubuntu	transmission	26.04	`4.1.0~beta2+dfsg-3ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta2+dfsg-3ubuntu2`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta4+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0~beta5+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.0+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.1+dfsg-1ubuntu1`	vulnerable
Ubuntu	transmission	26.04	`4.1.1+dfsg-1ubuntu1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	transmission	source	sid	`4.1.2+dfsg-1`	not yet assigned	Not reported	Not reported
Debian	transmission	source	forky	`4.1.2+dfsg-1`	not yet assigned	Not reported	Not reported
Debian	transmission	source	trixie	`4.1.0~beta2+dfsg-3+deb13u2`	not yet assigned	Not reported	Not reported
Debian	transmission	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported
Cpe	transmission	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Cpe	transmission-cli	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Cpe	transmission-common	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Cpe	transmission-daemon	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Cpe	transmission-gtk	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Cpe	transmission-qt	cpe	Not reported	`4.0.5-1ubuntu0.1`	Not reported	Not reported	Not reported
Opensuse	transmission	rpm	leap 16.0	`4.0.6-bp160.2.1`	Not reported	OPENSUSE-SU-2026:21189-1	Not reported
Ubuntu	transmission	deb	22.04	`3.00-2ubuntu2.2`	Not reported	USN-8404-1	Not reported
Ubuntu	transmission	deb	24.04	`4.0.5-1ubuntu0.1`	Not reported	USN-8404-1	Not reported
Ubuntu	transmission	deb	25.10	`4.1.0~beta2+dfsg-3ubuntu1.1`	Not reported	USN-8404-1	Not reported
Ubuntu	transmission	deb	26.04	`4.1.1+dfsg-1ubuntu1.1`	Not reported	USN-8404-1	Not reported
Ubuntu	transmission	deb	22.04	`3.00-2ubuntu2.2`	Not reported	UBUNTU-CVE-2026-38978	Not reported
Ubuntu	transmission	deb	24.04	`4.0.5-1ubuntu0.1`	Not reported	UBUNTU-CVE-2026-38978	Not reported
Ubuntu	transmission	deb	25.10	`4.1.0~beta2+dfsg-3ubuntu1.1`	Not reported	UBUNTU-CVE-2026-38978	Not reported
Ubuntu	transmission	deb	26.04	`4.1.1+dfsg-1ubuntu1.1`	Not reported	UBUNTU-CVE-2026-38978	Not reported

Notes

[bookworm] transmission: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[transmission]Affected
Details (2)
- 3.00-2.1+deb12u1 · all · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · all · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
[transmission-cli]Affected
Source package: [transmission]
Details (2)
- 3.00-2.1+deb12u1 · amd64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · arm64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
[transmission-common]Affected
Source package: [transmission]
Details (2)
- 3.00-2.1+deb12u1 · all · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · all · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
[transmission-daemon]Affected
Source package: [transmission]
Details (2)
- 3.00-2.1+deb12u1 · amd64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · arm64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
[transmission-gtk]Affected
Source package: [transmission]
Details (2)
- 3.00-2.1+deb12u1 · amd64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · arm64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
[transmission-qt]Affected
Source package: [transmission]
Details (2)
- 3.00-2.1+deb12u1 · amd64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12
- 3.00-2.1+deb12u1 · arm64 · bookworm
  Affected
  nvd · transmission · debian · bookworm; nvd · transmission · debian · 12

[Debian 13 (Trixie)]

[libtransmission-dev]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission]Affected
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission-cli]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission-common]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission-daemon]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission-gtk]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
[transmission-qt]Affected
Source package: [transmission]
Details (4)
- 4.1.0~beta2+dfsg-3+deb13u1 · amd64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.0~beta2+dfsg-3+deb13u1 · arm64 · trixie
  Affected · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13
- 4.1.3+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 4.1.0~beta2+dfsg-3+deb13u2
  nvd · transmission · debian · 13

Observed: Oct 23, 2026, 9:49:27 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]