| Titre | Privoce, Inc VoceChat Server <= 0.5.20 Server-Side Request Forgery |
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| Description | VoceChat Server is an open-source, self-hosted instant messaging application developed by Privoce, Inc. and written in Rust.
A Server-Side Request Forgery (SSRF) vulnerability exists in the /api/resource/open_graphic_parse endpoint. The endpoint accepts a user-supplied "url" query parameter and passes it directly to open_graph::fetch() without authentication, protocol validation, or IP address filtering. An unauthenticated remote attacker can exploit this to force the server to send HTTP requests to arbitrary internal or external targets.
Impact:
- Internal network port scanning and service discovery (e.g., Redis, MySQL, Elasticsearch).
- Information disclosure via Open Graph metadata parsing of internal services.
- Cloud metadata access (e.g., x.x.x.x on AWS/Alibaba Cloud/Tencent Cloud) potentially exposing IAM temporary credentials.
- Lateral movement within the internal network. |
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| La source | ⚠️ https://is.yuum.me/posts/2026-08-06-ssrf-vulnerability-in-vocechat-server-v0520/ |
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| Utilisateur | yumeu (UID 88980) |
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| Soumission | 06/08/2026 18:52 (il y a 2 mois) |
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| Modérer | 27/09/2026 10:13 (2 months later) |
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| Statut | Accepté |
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| Entrée VulDB | 410843 [Privoce VoceChat Server jusqu’à 0.5.36 open_graphic_parse Endpoint src/api/resource.rs open_graph::fetch url élévation de privilèges] |
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| Points | 20 |
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