HIGH

CVE-2026-104636

Gitea SSRF through Git HTTP redirects in mirrors and fetches

CVSS v3

7.5

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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 serve

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2026-10-06
Last Modified: 2026-10-07

Frequently asked questions

What is CVE-2026-104636?

Is CVE-2026-104636 actively exploited?

Active exploitation of CVE-2026-104636 has not been confirmed.

What is the CVSS score for CVE-2026-104636?

CVE-2026-104636 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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