CVE-2026-104636
Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy and the internal services reachable from the server.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.26% probability · 17th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- gitea/gitea
- Source
- 88ee5874-cf24-4952-aea0-31affedb7ff2
EPSS moved from 0.1% on 7 October 2026 to 0.3% on 26 October 2026.
References
- https://blog.gitea.com/release-of-28.0.0/Release Notes
- https://github.com/go-gitea/gitea/pull/39426Patch
- https://github.com/go-gitea/gitea/releases/tag/v28.0.0Release Notes
- https://github.com/go-gitea/gitea/security/advisories/GHSA-g4hw-fg4c-89mqMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.