CVE-2026-41179: fallo crítico en rclone
RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
63Vexday Risk Score
Corrige pronto. Ella tiene exploit funcional público.
ssvc Attendcvss 9.2epss 8.6%
de la publicación al arma66 días
Publicada en NVD23 abr
1ª PoC+66d
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.
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
Productos afectados
rclone · rclonePoCs públicas encontradas — 1
githubgithub.com/pssec-io/CVE-2026-41179★ 0⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — rclone
En el mismo producto, de las más peligrosas a las menos.
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Referencias
https://access.redhat.com/security/cve/CVE-2026-41179https://bugzilla.redhat.com/show_bug.cgi?id=2460988https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.gohttps://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.gohttps://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.gohttps://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3bhttps://github.com/rclone/rclone/releases/tag/v1.73.5https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6qhttps://rclone.org/changelog/#v1-73-5-2026-04-19https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41179.json