CVE-2026-70482
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Błąd w Open WebUI umożliwia nieautoryzowane przejęcie sesji przez wymianę tokena dostępu.
CVSS
8.1
EPSS
0.5%
Exploit
poc
Vendor
openwebui
Opis źródłowy (NVD)
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLE_OAUTH_TOKEN_EXCHANGE=True, /oauth/{provider}/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which OAuth client the token was issued to. Anyone holding an access token minted for any client registered with the same provider could exchange it for an Open WebUI session as that token user, including applications the operator does not control and has never authorized. This issue is fixed in 0.11.0.
exploit
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 8.1 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.5% |
| Opublikowano (NVD) | 2026-08-04 20:16:55 UTC |
| Ostatnia modyfikacja (NVD) | 2026-09-18 14:46:15 UTC |
Referencje
- https://github.com/open-webui/open-webui/commit/b190dcf3caa00dc8b7b9c7312828298d9143f60d ([email protected]) [Patch]
- https://github.com/open-webui/open-webui/commit/c4332be71e6e9c314e8a13b9d2819a6932561630 ([email protected]) [Patch]
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0 ([email protected]) [Release Notes]
- https://github.com/open-webui/open-webui/security/advisories/GHSA-rq84-p6rr-vf89 ([email protected]) [Exploit, Mitigation, Vendor Advisory]