Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS
With `[migrations] ALLOWED_DOMAINS` set to a matching entry such as `*` or a hostname wildcard, Gitea's migration URL validation could permit reserved and link-local addresses, such as `169.254.169.254`, even when `ALLOW_LOCALNETWORKS = false`. The local-network block list did not cover these ranges, and a hostname matching the allow list was accepted regardless of its resolved address. A user who can start migrations on such an instance could reach these addresses from the Gitea server; the default empty `ALLOWED_DOMAINS` configuration is not affected.
CVE-2026-96400
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-96400
Gitea
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Gitea",
"product": "Gitea",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.27.3"
}
],
"packageName": "gitea.dev",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-96400
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #11854 · Revision 1
- Added to Heist Feed
- Publisher date