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- CWE-918
CVE-2026-57448
Blombooru: administrator image-proxy server-side request forgery
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- Güncellendi
- 29 Eki 2026
- Açık yaşı
- 0 gün
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- GitHub_M
Özet
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Blombooru is a self-hosted personal booru for organizing and tagging private image collections. Prior to 1.40.0, the administrator-only GET /proxy-image endpoint, exposed as /api/booru-import/proxy-image, accepts a url query parameter and fetches it server-side without meaningful destination validation. proxy_image() in backend/app/routes/booru_import.py only checks whether the value starts with http, then uses get_client_for_url or requests.get and streams the response. Private, loopback and link-local addresses are not blocked, and automatically followed redirects can move a request from a trusted domain to an internal address. An authenticated administrator can enumerate internal services and access cloud instance metadata, potentially disclosing IAM credentials and crossing the application's intended cloud or network trust boundary. The reporter also observed a hanging recursive self-request. Administrator authentication remains a prerequisite; this is not an anonymous proxy. This issue is fixed in version 1.40.0.
Etkilenen sürümler1 yazılım
| Yazılım | Etkilenen | Düzeltildiği sürüm |
|---|---|---|
| mrblomblo blombooru | < 1.40.0 | 1.40.0 |
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