CVE-2026-101027

UNKNOWN 0.0

Gitea migration SSRF through ALLOWED_DOMAINS address check bypass

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	gitea
Product	gitea
Published	Oct 6, 2026

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Affected Versions

Gitea / Gitea

0 ≤ 1.27.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/go-gitea/gitea/security/advisories/GHSA-fqjr-23c8-gg9m github.com: https://github.com/go-gitea/gitea/pull/39426 blog.gitea.com: https://blog.gitea.com/release-of-28.0.0/ github.com: https://github.com/go-gitea/gitea/releases/tag/v28.0.0

Credits

🔍 https://github.com/Razzlemouse https://github.com/TheFox0x7 https://github.com/silverwind https://github.com/bircni https://github.com/wxiaoguang