CVE-2026-116194

high

Description

Rclone from 1.52.0 before 1.75.2 contains a cross-site request forgery vulnerability in the pCloud backend's localhost OAuth callback, which disables the state check and trusts the hostname parameter. Malicious web pages can send a stateless request to port 53682 during authorization, planting attacker tokens and API hosts so later transfers reach the attacker.

References

https://www.vulncheck.com/advisories/rclone-1.52.0-before-1.75.2-csrf-via-pcloud-oauth-callback

https://github.com/rclone/rclone/security/advisories/GHSA-hvpr-p4pv-4f46

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-109452

Details

Source: Mitre, NVD

Published: 2026-10-25

Updated: 2026-10-25

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 7.6

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

Severity: High