CVE-2026-73539 — Gitea external renderer argument injection and code execution
Gitea substitutes a URL derived from the markup Context field into external renderer command templates without escaping the reference path before shell-style argument splitting.…
Published: 2026-10-14 · CVSS: 7.5 · CVSS 3.1
Gitea substitutes a URL derived from the markup Context field into external renderer command templates without escaping the reference path before shell-style argument splitting. A crafted Context can inject additional renderer arguments, including options that load executable filter files. On deployments using a susceptible external renderer such as pandoc, a user who can place a filter file at an accessible path can cause it to execute as the Gitea service account; the public repository markup endpoint itself can be reachable without authentication.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7