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easyVoice before 0.0.23 SSRF via openaiBaseUrl in TTS API

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

6.9MediumCNA
Exploited
Proof of concept public, per CISA
Fix
Fixed in 0.0.23
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 0.0.23.

42Pcve.now Index 42 of 100 · methodology v3 · provisional
  • Exploitation15/40CISA rates a proof of concept as public
  • Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Data gap: No advisory context yet
  • Reach?/20Reach: unknown (data gap). No tracked technology or package matched
  • Severity6.9/10CVSS 6.9
  • No patch0/5No signal

What would change the score

  • Would score about 72 if added to CISA KEV
  • Would score about 67 if CISA's SSVC rates exploitation active
  • Would score about 47 if advisories confirm default setups are exposed

CVE-2026-121936 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.9 (medium) and affects easyVoice; fixed in 0.0.23.

Published
Last modified
Published
Not listed in CISA KEV
42/100 · provisional
Fix
Fixed in 0.0.23
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

easyVoice versions before 0.0.23 can be abused remotely, without logging in, to make the server send POST requests to loopback and internal services by supplying a crafted openaiBaseUrl value to the TTS API when useLLM is enabled. Attackers can use the reflected error messages in the x-generate-tts-warning header to probe internal hosts and ports.

Read the original 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.

What to do

  • Upgrade to a fixed version: 0.0.23.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  4. Record last updated

Affected versions

  • cosin2077 easyVoice

    fixed in 0.0.23

Evidence 6

  1. Patch
  2. Patch
  3. Report
  4. Repository
  5. Repository
  6. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-121936

Is CVE-2026-121936 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. CISA's SSVC assessment notes a proof of concept exists. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-121936?

easyVoice: before 0.0.23.Source: cve.now feed data

How do I fix CVE-2026-121936?

Upgrade to a fixed version: 0.0.23.Source: cve.now feed data