{"id":"CVE-2026-73539","published":"2026-10-14T15:17:23.633","lastModified":"2026-10-14T16:04:39.483","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-88"],"vendors":[],"products":[],"references":[{"url":"https://blog.gitea.com/release-of-1.27.2/","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/38885","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/38898","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2","tags":[]}],"exploitRefs":[{"url":"https://github.com/go-gitea/gitea/pull/38885","tags":[]},{"url":"https://github.com/go-gitea/gitea/pull/38898","tags":[]},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2","tags":[]},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2","tags":[]}],"hasPoc":true,"ai":null}