DEBIAN-CVE-2026-116748

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Source
https://security-tracker.debian.org/tracker/CVE-2026-116748
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116748.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-116748
Upstream
Published
2026-10-26T22:16:59Z
Modified
2026-10-27T20:00:07Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409 handshake response and replay it to issue RPC calls, enabling script-torrent-done execution, download-dir changes, or torrent and data deletion.

References

Affected packages

Debian:12 / transmission

Package

Name
transmission
Purl
pkg:deb/debian/transmission?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.00-2.1
3.00-2.1+deb12u1
4.*
4.0.1-1
4.0.2-1
4.0.5-1
4.0.5-2
4.0.5-3
4.0.6+dfsg-1
4.0.6+dfsg-2
4.0.6+dfsg-3
4.1.0~beta1+dfsg-1
4.1.0~beta2+dfsg-1
4.1.0~beta2+dfsg-2
4.1.0~beta2+dfsg-3
4.1.0~beta2+dfsg-4
4.1.0~beta2+dfsg-5
4.1.0~beta3+dfsg-1
4.1.0~beta4+dfsg-1
4.1.0~beta5+dfsg-1
4.1.0+dfsg-1~bpo13+1
4.1.0+dfsg-1
4.1.1+dfsg-1~bpo13+1
4.1.1+dfsg-1
4.1.2+dfsg-1~bpo13+1
4.1.2+dfsg-1
4.1.3+dfsg-1~bpo13+1
4.1.3+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116748.json"

Debian:13 / transmission

Package

Name
transmission
Purl
pkg:deb/debian/transmission?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.1.0~beta2+dfsg-3
4.1.0~beta2+dfsg-3+deb13u1
4.1.0~beta2+dfsg-3+deb13u2
4.1.0~beta2+dfsg-4
4.1.0~beta2+dfsg-5
4.1.0~beta3+dfsg-1
4.1.0~beta4+dfsg-1
4.1.0~beta5+dfsg-1
4.1.0+dfsg-1~bpo13+1
4.1.0+dfsg-1
4.1.1+dfsg-1~bpo13+1
4.1.1+dfsg-1
4.1.2+dfsg-1~bpo13+1
4.1.2+dfsg-1
4.1.3+dfsg-1~bpo13+1
4.1.3+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116748.json"

Debian:14 / transmission

Package

Name
transmission
Purl
pkg:deb/debian/transmission?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.3+dfsg-1

Affected versions

4.*
4.1.0~beta2+dfsg-3
4.1.0~beta2+dfsg-4
4.1.0~beta2+dfsg-5
4.1.0~beta3+dfsg-1
4.1.0~beta4+dfsg-1
4.1.0~beta5+dfsg-1
4.1.0+dfsg-1~bpo13+1
4.1.0+dfsg-1
4.1.1+dfsg-1~bpo13+1
4.1.1+dfsg-1
4.1.2+dfsg-1~bpo13+1
4.1.2+dfsg-1
4.1.3+dfsg-1~bpo13+1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116748.json"