Path traversal in Fonoster
Priority LOW 37CWE-24Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
Fonoster 0.5.5 before 0.6.1 allows ../ directory traversal to read arbitrary files via the /sounds/:file or /tts/:file VoiceServer endpoint. This occurs in serveFiles in mods/voice/src/utils.ts. NOTE: serveFiles exists in 0.5.5 but not in the next release, 0.6.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02398 84th percentileScored 2026-11-07
Fix Fixed Fonoster (Fonoster): 0.6.1@fonoster/voice (npm): 0.6.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fonoster | Fonoster | 0.5.5 to before 0.6.1 | 0.6.1 | Patch available | CNA |
| — | @fonoster/voice (npm) | 0.5.5 to before 0.6.1 | 0.6.1 | Patch available | GHSA-9fv2-c7v6-p45w |
- Fonoster VendorFonoster Affected 0.5.5 to before 0.6.1 Fixed in 0.6.1 Patch available CNA
- @fonoster/voice (npm) Vendor— Affected 0.5.5 to before 0.6.1 Fixed in 0.6.1 Patch available GHSA-9fv2-c7v6-p45w
Remediation
- Fix · CNA Fonoster (Fonoster) Fixed in 0.6.1
- Fix · GHSA-9fv2-c7v6-p45w @fonoster/voice (npm) Fixed in 0.6.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-43035
- 2026-10-03 Alias added: GHSA-9fv2-c7v6-p45w
References
More Fonoster vulnerabilities
- TI-2026-55450 Fonoster through 0.22.7 Incorrect Authorization in the Identity UpdateWorkspace Handler CVSS 4.0MEDIUM 5.3
Sources
- CVE-2024-43035 · CVE Program
- CVE-2024-43035 · NVD
- FIRST EPSS
- GHSA-9fv2-c7v6-p45w · GitHub Advisory Database · CC BY 4.0
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