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CVE-2026-104636GHSA-g4hw-fg4c-89mq

Gitea SSRF through Git HTTP redirects in mirrors and fetches

Gitea Gitea
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in28.0.0Fixed versionGitHub
Published6 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

  • 28.0.0gitea.dev, goGitHubgo get gitea.dev@v28.0.0

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • Giteaaffected: all versions through 1.27.3CVE List
  • gitea.dev, go<= 1.27.3GitHub

References 4