High severity · published Oct 25, 2026
CVE-2026-116191
Rclone before 1.75.2 Path Traversal via serve webdav MKCOL
New
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Rclone before 1.75.2 contains a path traversal vulnerability in serve webdav that allows unauthenticated attackers to write above the served root by sending an unvalidated '..' path component. Attackers can send MKCOL /.. to plant a VFS node, then PUT, MOVE, COPY, or MKCOL to create, overwrite, or delete files belonging to other tenants.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RC
rclone · rclone
before 1.75.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116191
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116191
Vendor Advisory
https://github.com/rclone/rclone/security/advisories/GHSA-44pm-2q5p-fm63
Third Party Advisory
https://www.vulncheck.com/advisories/rclone-before-1.75.2-path-traversal-via-serve-webdav-mkcol
More from rclone
9.8
CVE-2026-88018
rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass
9.8
CVE-2026-49980
Rclone: Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation, bypassing CVE-2026-41179 fix
9.8
CVE-2026-41179
RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution
9.8
CVE-2026-41176
Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution
9.1
CVE-2026-88044
rclone: RC per-server auth-proxy bypass