CVE-2026-40348

Movary has Authenticated SSRF via Jellyfin Server URL Verification that Allows Internal Network Probing

HIGH
7.7
CVSS Score
Published: April 18, 2026 at 12:01 AM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorMovary

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Severity
HIGH7.7
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

Movary is a self hosted web app to track and rate a user's watched movies. Prior to version 0.71.1, an ordinary authenticated user can trigger server-side requests to arbitrary internal targets through `POST /settings/jellyfin/server-url-verify`. The endpoint accepts a user-controlled URL, appends `/system/info/public`, and sends a server-side HTTP request with Guzzle. Because there is no restriction on internal hosts, loopback addresses, or private network ranges, this can be abused for SSRF and internal network probing. Any ordinary authenticated user can use this endpoint to make the server connect to arbitrary internal targets and distinguish between different network states. This enables SSRF-based internal reconnaissance, including host discovery, port-state probing, and service fingerprinting. In certain deployments, it may also be usable to reach internal administrative services or cloud metadata endpoints that are not directly accessible from the outside. Version 0.71.1 fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.71.1
Affected range stops below 0.71.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/leepeuker/movary/security/advisories/GHSA-2m2v-v563-qqvj
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/leepeuker/movary/pull/751
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/leepeuker/movary/releases/tag/0.71.1

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-918

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