CVE-2026-55420 — Discourse: Remote code execution via pdf uploads
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, under certain non-default configurations, processing of PDF uploads could b…
Published: 2026-07-09 · CVSS: 7.5 · CVSS 3.1
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, under certain non-default configurations, processing of PDF uploads could be exploited to obtain RCE on the server. This issue is patched in 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7