SSRF in Cosin2077 Easyvoice
CVE-2026-121936
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/cosin2077/easyVoice/issues/87 (issue-tracking)
- github.com/cosin2077/easyVoice/pull/88 (issue-tracking, patch)
- github.com/cosin2077/easyVoice/commit/82fcb5b2f324c84b3f1808b29c6f44df16ccd42e (patch)
- easyVoice v0.0.23 Release Notes (release-notes)
- github.com/cosin2077/easyVoice/blob/be08c5f3fed07f3af749defcf04e590ffcb0c48d/pa… (technical-description)
- VulnCheck Advisory: easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121936?
- CVE-2026-121936 is a medium-severity vulnerability in Cosin2077 Easyvoice, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-11-04.
- How severe is CVE-2026-121936?
- Medium severity. CVSS v3 base score is 6.5 out of 10.