CVE-2026-110644: nodejs-whisper allows OS command injection through crafted audio file paths

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 2.7%, percentile 86: FIRST’s model estimates a 2.7% chance of exploitation activity in the next 30 days, higher than 86% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
• Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
• Only applies if your dependency tree includes nodejs-whisper (npm) < 0.4.0, fixed in 0.4.0. Check your lockfile, including transitive dependencies.

What it is

nodejs-whisper through 0.3.1 contains an OS command injection vulnerability in convertToWavType() that allows attackers to execute commands by supplying crafted audio file paths. Attackers can provide file names containing $() command substitution or closing quotes, which are interpolated into an ffmpeg command run via shelljs exec(), executing OS commands with Node.js process privileges.

From the GitHub advisory

nodejs-whisper through 0.3.1 contains an OS command injection vulnerability in convertToWavType() that allows attackers to execute commands by supplying crafted audio file paths. Attackers can provide file names containing $() command substitution or closing quotes, which are interpolated into an ffmpeg command run via shelljs exec(), executing OS commands with Node.js process privileges.

Weakness type: CWE-78.

Product: nodejs-whisper (npm) · Assigned by: VulnCheck · Published: 2026-10-14

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Attack requirements: none
• Privileges required: none (no login)
• User interaction: none

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
• FIRST EPSS (model of 2026-11-04): 2.73% probability of exploitation activity in the next 30 days; percentile 86.

Timeline

• 2026-10-14 — CVE record last updated
• 2026-10-14 — CVE record published by VulnCheck
• 2026-10-14 — GitHub-reviewed advisory GHSA-2f48-3555-fpx6 published (critical)

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. github.com github.com

Vulnerability records

1. GitHub Advisory GHSA-2f48-3555-fpx6 github.com
2. CVE.org record CVE-2026-110644 cve.org
3. NVD entry CVE-2026-110644 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. github.com github.com
3. VulnCheck Advisory: nodejs-whisper through 0.3.1 OS Command Injection via convertToWavType vulncheck.com
4. github.com github.com
5. github.com github.com
6. github.com github.com
7. github.com github.com

Critical npm advisories · Today’s Security Digest