CVE-2026-28788
HighSummary
Open WebUI to samodzielnie hostowana platforma sztucznej inteligencji, która przed wersją 0.8.6 pozwalała każdemu uwierzytelnionemu użytkownikowi na nadpisanie zawartości dowolnego pliku poprzez punkt końcowy `POST /api/v1/retrieval/process/files/batch`. Brak weryfikacji właściciela umożliwia regularnym użytkownikom z dostępem do wspólnej bazy wiedzy uzyskanie UUID plików i ich nadpisanie.
Risk Assessment
Atakujący może kontrolować zawartość plików, co prowadzi do eskalacji uprawnień z odczytu na zapis. To stwarza ryzyko dezinformacji, ponieważ nadpisane treści są wykorzystywane przez model AI do interakcji z innymi użytkownikami.
Recommendation
Zaleca się aktualizację do wersji 0.8.6 lub nowszej, aby załatać tę podatność. Dodatkowo warto wprowadzić dodatkowe kontrole dostępu do punktów końcowych API.
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D-Link M60 1.12.B01 contains hard-coded credentials in the /etc/emDaemon/mosquitto.conf file of the emDaemon MQTT Broker component. The vulnerability can be exploited remotely, and a public exploit may already be in use.
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GV-Face transmits sensitive user credentials and related authentication data over unencrypted HTTP connections. The HTTP traffic is not encrypted, allowing an attacker to intercept it.
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Original NVD description (English source)
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the `POST /api/v1/retrieval/process/files/batch` endpoint. The endpoint performs no ownership check, so a regular user with read access to a shared knowledge base can obtain file UUIDs via `GET /api/v1/knowledge/{id}/files` and then overwrite those files, escalating from read to write. The overwritten content is served to the LLM via RAG, meaning the attacker controls what the model tells other users. Version 0.8.6 patches the issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

