easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API

Advisories

easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API

Severity: medium
Date: 11/4/2026
Affecting: easyVoice >= 0, < 0.0.23
CVE: CVE-2026-121936
CWE: CWE-918 Server-Side Request Forgery (SSRF)
CVSS: 6.9
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
References: https://github.com/cosin2077/easyVoice/issues/87
https://github.com/cosin2077/easyVoice/pull/88
https://github.com/cosin2077/easyVoice/commit/82fcb5b2f324c84b3f1808b29c6f44df16ccd42e
easyVoice v0.0.23 Release Notes
https://github.com/cosin2077/easyVoice/blob/be08c5f3fed07f3af749defcf04e590ffcb0c48d/packages/backend/src/utils/ssrf.ts#L28-L47
Credit: George Chen
Description: easyVoice before 0.0.23 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server send POST requests by supplying openaiBaseUrl with useLLM enabled. Attackers can target loopback and internal services through /api/v1/tts endpoints, using reflected error messages in the x-generate-tts-warning header to probe internal hosts and ports.

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