CVE-2026-101027 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://blog.gitea.com/release-of-28.0.0/ | Gitea Limited | |
| https://github.com/go-gitea/gitea/pull/39426 | Gitea Limited | |
| https://github.com/go-gitea/gitea/releases/tag/v28.0.0 | Gitea Limited | |
| https://github.com/go-gitea/gitea/security/advisories/GHSA-fqjr-23c8-gg9m | Gitea Limited |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-346 | Origin Validation Error | CISA-ADP |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 7, 2026 | CVE Modified | CISA-ADP |
| Oct 7, 2026 | CVE Modified | CISA-ADP |
| Oct 6, 2026 | New CVE Received | Gitea Limited |