The Gitea API endpoint GET /api/v1/repos/{owner}/{repo}/media/{filepath} wrote files of up to 1 KiB that are stored directly in Git, not in LFS, to the response without the content type and disposition headers Gitea uses for user content. An HTML file committed to a repository was therefore rendered by the browser on the Gitea origin. A user who can push to a repository could run JavaScript in the session of a victim who opens the media URL and act with the victim's permissions.
{
"cna_assigner": "Gitea",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/96xxx/CVE-2026-96594.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "28.1.0"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "v28.1.0",
"range": [
{
"fixed": "4ebd5e319b6a9e629bfd7a04292a6fe85b08dee9"
}
],
"source": "REFERENCES_TAG"
}
]
}