CVE-2026-42589criticalexplotación observadaCWE-78

CVE-2026-42589: fallo crítico en gotenberg

Gotenberg: Unauthenticated RCE via ExifTool Metadata Key Injection

Publicada el

Seguir esta CVE+ Monitorear gotenberg+ Monitorear github.com/gotenberg/gotenberg/v7

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85Vexday Risk Score

Corrige ahora. Ella explotación observada por VulnCheck y tiene exploit funcional público.

ssvc Actcvss 9.8epss 3.0%
de la publicación al arma16 días
Publicada en NVD14 may
1ª PoC+16d
VulnCheck+40d
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg's /forms/pdfengines/metadata/write HTTP endpoint accepts a JSON metadata object and passes its keys directly to ExifTool via the go-exiftool library. No validation is performed on key characters. A \n embedded in a JSON key splits the ExifTool stdin stream into a new argument line, allowing an attacker to inject arbitrary ExifTool flags — including -if, which evaluates Perl expressions. This achieves unauthenticated OS command execution in a single HTTP request. The response is HTTP 200 with a valid PDF, making the attack transparent to basic monitoring. This vulnerability is fixed in 8.31.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
gotenberg · gotenberg
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