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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-103667

Gitea container registry stored XSS through blob media type

Description

Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in pushed image manifests, without a `Content-Disposition` or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a `text/html` media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and can perform actions as the victim, such as creating API tokens.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Gitea Gitea

Default version status: unaffected

  • 0 to ≤ 1.27.3affected

References