What is CVE-2024-43035?

CVE-2024-43035 is a medium-severity vulnerability in Fonoster, classified under CWE-24. CVSS score: 5.8/10. Published 2026-03-05.

How severe is CVE-2024-43035?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Is CVE-2024-43035 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Fonoster

CVE-2024-43035

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.

EPSS: 0.024 (82.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

Affected products

Fonoster — versions 0.5.5

Weakness classification (CWE)

CWE-24

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-43035?: CVE-2024-43035 is a medium-severity vulnerability in Fonoster, classified under CWE-24. CVSS score: 5.8/10. Published 2026-03-05.
How severe is CVE-2024-43035?: Medium severity. CVSS v3 base score is 5.8 out of 10.
Is CVE-2024-43035 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.