CVE-2026-73539

CVE-2026-73539 · Gitea external renderer argument injection and code execution

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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.

CVSS 7.5 · Élevée · EPSS 0,5%

Publication

2026-10-14T14:37:44.243Z

Mise à jour

2026-10-18T13:32:51.154Z

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