---
id: CVE-2026-103667
title: >-
  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
summary: >-
  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 im…
severity: none
cwe:
  - CWE-79
vendor: Gitea
product: gitea.dev
affected:
  - gitea.dev <= 1.27.3
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T20:17:14.607'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103667'
references:
  - url: 'https://blog.gitea.com/release-of-28.0.0/'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/pull/39398'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/releases/tag/v28.0.0'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/security/advisories/GHSA-7cq7-4v93-8wjm'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T20:16:42.498Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.