Gitea validated a push mirror's remote address against the [migrations] allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to git push, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.
{
"cna_assigner": "Gitea",
"cwe_ids": [
"CWE-367",
"CWE-918"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89430.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "28.0.0"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "v28.0.0",
"range": [
{
"fixed": "15b8a5805adf57c5189602008d38cccfd3c795e0"
}
],
"source": "REFERENCES_TAG"
}
]
}