CVE-2026-116748

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.4% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-27.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-26 21:52Z2 DAYS AGO

Last updated

2026-10-26 21:52Z2 DAYS AGO

Reserved

2026-10-26

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-942Permissive Cross-domain Security Policy with Untrusted DomainsVariant

Data version

5.2

Document digest

ca1a97717db5ef3d55c12bdf12499cab375a8285b33b3ed254fd43024d6c8ee4

• github.comPull Request #8938https://github.com/transmission/transmission/pull/8938issue-trackingpatch
• github.comPatch Commithttps://github.com/transmission/transmission/commit/c6a1bd2017a0fea9c956737c213f23e4b0f7929epatch
• github.comhttps://github.com/transmission/transmissionproduct
• github.comtransmission 4.1.3 Release Noteshttps://github.com/transmission/transmission/releases/tag/4.1.3release-notes
• github.comhttps://github.com/transmission/transmission/blob/4.1.2/libtransmission/rpc-server.cc#L560technical-description
• joshua.huhttps://joshua.hu/transmission-cors-rpc-csrf-rce-drive-by-exploitthird-party-advisory
• www.vulncheck.comVulnCheck Advisory: Transmission 4.0.0 before 4.1.3 Permissive CORS Leaks RPC Anti-CSRF Tokenhttps://www.vulncheck.com/advisories/transmission-4.0.0-before-4.1.3-permissive-cors-leaks-rpc-anti-csrf-tokenthird-party-advisory