CVE-2026-43893
HIGHexiftool-vendored: Argument injection via newline characters in tag names
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-43893. PoCs published by Dobby153.
AI-analyzed exploit summary The repository contains functional exploit code for CVE-2026-43893, demonstrating arbitrary file write and local file read vulnerabilities in exiftool-vendored.js via crafted metadata tags. The PoCs leverage command injection through malformed XMP tags to achieve file system manipulation.
Description
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.
Exploits (1)
The repository contains functional exploit code for CVE-2026-43893, demonstrating arbitrary file write and local file read vulnerabilities in exiftool-vendored.js via crafted metadata tags. The PoCs leverage command injection through malformed XMP tags to achieve file system manipulation.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N