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.
Metrics
Affected Vendors & Products
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Fixes
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Workaround
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References
History
Tue, 06 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS | |
| Weaknesses | CWE-918 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: Gitea
Published:
Updated: 2026-10-06T19:25:23.261Z
Reserved: 2026-10-04T21:59:53.556Z
Link: CVE-2026-96400
Vulnrichment
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NVD
Status : Received
Published: 2026-10-06T20:17:35.387
Modified: 2026-10-06T20:17:35.387
Link: CVE-2026-96400
Redhat
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OpenCVE Enrichment
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Weaknesses