CVE Feed

    Dashboard / CVE / CVE-2026-116748

    CVE-2026-116748

    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.

    Published:Oct 26, 2026
    Last Modified:Oct 27, 2026
    EPS:Oct 26, 2026
    EPSS Score:0.01246
    CVSS Score:8.8

    Affected Products

    Vendor
    Transmissionbt
    Product
    Transmission

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-38978 (CVSS 5.3) — transmission through 4.1.1 was found to have a clickjacking weakness in the browser-facing WebUI and RPC respo…
    CVE-2018-10756 (CVSS 7.8) — Use-after-free in libtransmission/variant.c in Transmission before 3.00 allows remote attackers to cause a den…
    CVE-2018-5702 (CVSS 8.8) — Transmission through 2.92 relies on X-Transmission-Session-Id (which is not a forbidden header for Fetch) for …
    CVE-2014-4909 (CVSS 6.8) — Integer overflow in the tr_bitfieldEnsureNthBitAlloced function in bitfield.c in Transmission before 2.84 allo…
    CVE-2012-6129 (CVSS 7.5) — Stack-based buffer overflow in utp.cpp in libutp, as used in Transmission before 2.74 and possibly other produ…
    CVE-2012-4037 (CVSS 2.6) — Multiple cross-site scripting (XSS) vulnerabilities in the web client in Transmission before 2.61 allow remote…
    CVE-2010-1853 (CVSS 6.8) — Multiple stack-based buffer overflows in the tr_magnetParse function in libtransmission/magnet.c in Transmissi…
    CVE-2010-0748 (CVSS 9.8) — Transmission before 1.92 allows an attacker to cause a denial of service (crash) or possibly have other unspec…
    CVE-2010-0749 (CVSS 5.3) — Transmission before 1.92 allows attackers to prevent download of a file by corrupted data during the endgame.…
    CVE-2010-0012 (CVSS 8.8) — Directory traversal vulnerability in libtransmission/metainfo.c in Transmission 1.22, 1.34, 1.75, and 1.76 all…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High