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CVE-2026-101027

Gitea migration SSRF through ALLOWED_DOMAINS address check bypass PUBLISHED

Description (CNA)

When `[migrations] ALLOWED_DOMAINS` was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions. A user who can start repository migrations and control the DNS of an allowed hostname could make it resolve to loopback or private addresses and bypass `ALLOW_LOCALNETWORKS = false`, reaching internal services from the Gitea server. Instances without `ALLOWED_DOMAINS` configured are not affected by this specific bypass.

Affected (CNA)

Vendor / productVersions
Gitea / Giteaaffected 0 through 1.27.3

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.