CVE-2026-11419

Awaiting Analysis
Published: 05 Jun 2026, 19:54
Last modified:05 Jun 2026, 20:29

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.4 CRITICAL
v4.0 (cve.org)
EPSS Score
0.42% LOW
0% probability
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Jun 2026, 19:54
Published
Vulnerability first disclosed
05 Jun 2026, 20:29
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•CRITICAL•Score: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • v4.0•CRITICAL•Score: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 Trends

Current EPSS score: 0.42%• Percentile: 62%

Techniques & Countermeasures

  • CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

  • CWE-434•Unrestricted Upload of File with Dangerous Type

    The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Affected Systems

  • altium•altium enterprise server

    < 8.1.1

References (1)