Which versions of MoviePilot are affected by EUVD-2026-34920?

MoviePilot contains a path traversal vulnerability affecting cloud storage synchronization features that allows attackers to manipulate files through compromised cloud accounts, potentially modifying…. A patch is available.

How to fix or mitigate EUVD-2026-34920?

Within 24 hours: Identify all MoviePilot instances and document which cloud storage integrations are active; review recent file modification logs in application directories for suspicious activity. Within 7 days: Apply vendor patch (upstream commit a0b3800); test in non-production environment to verify compatibility before production deployment. Within 30 days: Complete patch deployment across all instances; implement file integrity monitoring on MoviePilot configuration directories; audit access credentials for connected cloud storage accounts.

MoviePilot EUVD-2026-34920

Q: What is the CVSS score of EUVD-2026-34920?

EUVD-2026-34920 has a CVSS 4.0 base score of 7.2 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

| CVE-2026-11416 HIGH

Path Traversal (CWE-22)

2026-06-05 VulnCheck

GHSA-cpw6-f634-6rvj

Path Traversal Moviepilot

7.2

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

Jun 05, 2026 - 22:27 vuln.today

v3 (cvss_changed)

Analysis Updated

Jun 05, 2026 - 22:27 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Jun 05, 2026 - 22:22 vuln.today

cvss_changed

CVSS changed

Jun 05, 2026 - 22:22 NVD

8.1 (HIGH) 7.2 (HIGH)

Source Code Evidence Fetched

Jun 05, 2026 - 22:15 vuln.today

Analysis Generated

Jun 05, 2026 - 22:15 vuln.today

DescriptionCVE.org

MoviePilot contains a path traversal vulnerability in the AliPan, U115, and Rclone cloud storage download handlers where the local destination path is constructed by concatenating the configured download directory with a filename taken directly from remote cloud API metadata without basename normalization or path validation. An attacker who controls a filename returned by a remote cloud storage API can include traversal sequences ../ in the filename to cause downloaded content to be written outside the configured download directory, potentially overwriting arbitrary files including configuration or plugin files reachable by the application process.

AnalysisAI

Path traversal in MoviePilot's AliPan, U115, Rclone, and SMB cloud storage download handlers allows an attacker who controls remote filenames to write files outside the configured download directory. The flaw stems from unsanitized concatenation of filenames returned by remote cloud APIs, enabling overwrite of configuration files, plugins, or other files accessible to the application process. No public exploit identified at time of analysis, but a vendor patch is available via upstream commit a0b3800.

Technical ContextAI

MoviePilot is a Python-based media automation tool (jxxghp/MoviePilot) that integrates with cloud storage providers including AliPan (Aliyun Drive), U115 (115 Cloud), Rclone, and SMB. The vulnerable code in app/modules/filemanager/storages/*.py constructed local download paths via (path or settings.TEMP_PATH) / fileitem.name - directly joining the configured directory with a filename obtained from remote cloud storage metadata. This is a textbook CWE-22 (Path Traversal) instance: because pathlib's / operator does not normalize or sanitize a trailing component containing ../ sequences, a malicious filename like ../../etc/config.yaml resolves outside the intended base directory. The patch introduces _safe_download_name (using PurePosixPath(...).name to strip directory components) and _build_download_path (which additionally calls resolve().relative_to(path.resolve()) to enforce containment).

RemediationAI

Upstream fix available (commit a0b3800f6bf4857bf4f889a63d44350eb8380f28); released patched version not independently confirmed - pull the latest MoviePilot main branch or the first tagged release containing this commit from https://github.com/jxxghp/MoviePilot. The fix adds basename normalization via PurePosixPath().name and a resolve()/relative_to() containment check in a new _build_download_path helper applied to AliPan, U115, Rclone, and SMB handlers. As compensating controls until upgrade, restrict MoviePilot to cloud accounts and shared folders you fully control (avoid ingesting public or third-party-shared content), run the MoviePilot process as an unprivileged user with the download directory on a dedicated filesystem or bind mount so traversal cannot reach configuration paths, and make the MoviePilot config and plugin directories read-only to the runtime user (trade-off: blocks legitimate in-app config writes and plugin installs). Monitor for unexpected files appearing under MoviePilot's app, config, or plugin directories.