Vulnerability · Published Nov 4, 2026 · Assigned by VulnCheck

CVE-2026-121936easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API

Medium 6.5

In plain English

A medium-severity server-side request forgery in easyVoice from cosin2077. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 71.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
cosin2077	easyVoice	0 – before 0.0.23

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/cosin2077/easyVoice/issues/87 issue-tracking
https://github.com/cosin2077/easyVoice/pull/88 issue-tracking, patch
https://github.com/cosin2077/easyVoice/commit/82fcb5b2f324c84b3f1808b29c6f44df16ccd42e patch
easyVoice v0.0.23 Release Notes release-notes
https://github.com/cosin2077/easyVoice/blob/be08c5f3fed07f3af749defcf04e590ffcb0c48d/packages/backend/src/utils/ssrf.ts#L28-L47 technical-description
VulnCheck Advisory: easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API third-party-advisory