CVE-2026-116193

Rclone from 1.64.0 before 1.75.2 contains an authentication bypass vulnerability in serve webdav that lets unauthenticated attackers skip authentication by sending OPTIONS requests. Attackers can probe arbitrary paths and compare Allow header values to determine whether files or collections exist, enabling namespace enumeration.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj	Vendor Advisory
https://www.vulncheck.com/advisories/rclone-1.64.0-before-1.75.2-serve-webdav-authentication-bypass-via-options-requests	Third Party Advisory
https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*

History

29 Oct 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj - Vendor Advisory~~	() https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj - Vendor Advisory

27 Oct 2026, 14:10

Type	Values Removed	Values Added
CPE		cpe:2.3:a:rclone:rclone::::::::
First Time		Rclone Rclone rclone
References	~~() https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj -~~	() https://github.com/rclone/rclone/security/advisories/GHSA-gj73-fh6v-92fj - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/rclone-1.64.0-before-1.75.2-serve-webdav-authentication-bypass-via-options-requests -~~	() https://www.vulncheck.com/advisories/rclone-1.64.0-before-1.75.2-serve-webdav-authentication-bypass-via-options-requests - Third Party Advisory

25 Oct 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-25 14:16

Updated : 2026-10-29 20:17

NVD link : CVE-2026-116193

Mitre link : CVE-2026-116193

CVE.ORG link : CVE-2026-116193

JSON object : View

Products Affected

rclone

rclone

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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