{"id":"CVE-2026-73539","revision":"039a11a23ace420dac9fd39b4c5a9eea","records":[{"revision":"039a11a23ace420dac9fd39b4c5a9eea","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-73539","aliases":[],"title":"Gitea external renderer argument injection and code execution","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.","state":0,"publishedAt":"2026-10-14T14:37:44.243+00:00","modifiedAt":"2026-10-18T13:32:51.154+00:00","affected":[{"ecosystem":"Vendor product","name":"gitea","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Gitea\",\n                    \"product\": \"Gitea\",\n                    \"packageName\": \"gitea\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"1.27.1\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2","https://blog.gitea.com/release-of-1.27.2/","https://github.com/go-gitea/gitea/pull/38885","https://github.com/go-gitea/gitea/pull/38898","https://github.com/go-gitea/gitea/releases/tag/v1.27.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73539","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-73539","identifiers":["CVE-2026-73539"]},"retained":false,"historicalAffected":[]}],"coverage":[]}