{"id":"CVE-2026-41176","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-41176","generatedAt":"2026-10-31T04:55:47.151Z","title":"The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself.","description":"Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself. Starting in version 1.45.0 and prior to version 1.73.5, an unauthenticated attacker can set `rc.NoAuth=true`, which disables the authorization gate for many RC methods registered with `AuthRequired: true` on reachable RC servers that are started without global HTTP authentication. This can lead to unauthorized access to sensitive administrative functionality, including configuration and operational RC methods. Version 1.73.5 patches the issue.","published":"2026-04-23T00:16:46.000Z","lastModified":"2026-07-15T02:21:14.000Z","status":"Modified","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":9.2,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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/M"},"cwe":["CWE-306","CWE-15"],"affected":["rclone/rclone"],"epss":{"score":0.32715,"percentile":0.98344,"date":"2026-10-30","history":[{"date":"2026-09-24","score":0.03216,"percentile":0.87678},{"date":"2026-10-25","score":0.32715,"percentile":0.98333}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 32.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.32715,"from":0.03216,"percentile":0.98333},"summary":"EPSS moved from 3.2% to 32.7% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-24T00:00:00.000Z","detail":{"to":0.03216,"from":0.32715,"percentile":0.87678},"summary":"EPSS moved from 32.7% to 3.2% probability of exploitation in the next thirty days."}],"references":[{"url":"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/config.go","tags":["Product"],"source":"security-advisories@github.com"},{"url":"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/rcserver/rcserver.go","tags":["Product"],"source":"security-advisories@github.com"},{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-41176","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2460989","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx","tags":["Exploit","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41176.json","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-41176","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}