CVE-2026-43893: Photostructure Exiftool-Vendored.js

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

exiftool-vendored provides cross-platform Node.js access to ExifTool. Prior to 35.19.0, exiftool-vendored starts ExifTool in -stay_open True -@ - mode, where arguments are read from stdin one per line. In affected versions, several caller-supplied strings were interpolated into ExifTool arguments without rejecting line delimiters. A newline or carriage return inside one of those strings could split a single intended argument into multiple ExifTool arguments, allowing argument injection. The fix also rejects NUL bytes as unsafe control characters. Applications that pass attacker-controlled strings to affected APIs may allow an attacker to make ExifTool read files accessible to the ExifTool process, or write output to attacker-chosen file system paths accessible to that process. No remote code execution has been demonstrated. This vulnerability is fixed in 35.19.0.

Affected products

• Photostructure Exiftool-Vendored.js: before 35.19.0 (fixed in 35.19.0)

Published 2026-05-11. Last modified 2026-06-17.