CVE-2026-11419 Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write
Authenticated attackers can write arbitrary files via path traversal in Altium Enterprise Server, potentially leading to remote code execution or service takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11419?
CVE-2026-11419 is a critical path traversal vulnerability in Altium Enterprise Server, published on 5 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A path traversal vulnerability exists in the Altium Enterprise Server Vault Service UploadController due to improper validation of a user-controlled path component in image upload requests. An authenticated user can supply a crafted absolute path so that the configured storage root is discarded, allowing arbitrary files to be written to any location on the server filesystem writable by the service account.
Because content-controlled files can be written to web-accessible directories, or used to overwrite application binaries or configuration files, this can be escalated to remote code execution, service takeover, or denial of service. Altium 365 cloud deployments are not affected, as the affected endpoint is not reachable and the cloud storage architecture mitigates the file-write primitive.
Which versions are affected by CVE-2026-11419?
It affects 1 product.
Products include Altium On-Prem Enterprise Server.
How do I fix CVE-2026-11419?
No fix has been published for CVE-2026-11419 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-11419 being exploited?
There is no known exploitation of CVE-2026-11419 in the wild and no public exploit code.
Other vulnerabilities in Altium Enterprise Server
- CVE-2026-11414 Hardcoded credentials in Altium Enterprise Server
- CVE-2026-11420 Path Traversal in Altium Enterprise Server NIS Allows Unauthenticated Arbitrary File Write and File Read
- CVE-2025-27378 SQL Injection in AES Due to Inactive SQL Parsing Configuration
- CVE-2026-1010 Stored Cross-Site Scripting in Altium Enterprise Server Workflow Engine Allows Privilege Escalation
- CVE-2025-27380 HTML Injection Leading to Script Execution in Altium Enterprise Server
Sources
Also known as GHSA-6hrc-72jv-9cp2.