CVE-2026-110639: Command Injection (CVSS 9.8)

Description

@mborne/extract before 0.2.1 contains an OS command injection vulnerability that allows attackers to execute commands by supplying shell metacharacters in archivePath or targetDir options. Attackers controlling these values passed to extract() can inject commands into unquoted shelljs exec() strings in the unzip, 7z, tar-bz2 and gz extractors, running them with Node.js process privileges.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0273

Probability of exploitation

0.86%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://github.com/mborne/node-extract/blob/v0.2.0/src/extractor/unzip.js#L17-L19 https://github.com/mborne/node-extract/commit/585e5b29657379e73c04f6f950ea8dc5319f8ae1 https://github.com/mborne/node-extract/pull/8 https://github.com/mborne/node-extract/releases/tag/v0.2.1 https://www.vulncheck.com/advisories/mborne-extract-before-0.2.1-os-command-injection-via-archivepath-and-targetdir

Frequently Asked Questions

What is CVE-2026-110639? +

@mborne/extract before 0.2.1 contains an OS command injection vulnerability that allows attackers to execute commands by supplying shell metacharacters in archivePath or targetDir options. Attackers controlling these values passed to extract() can inject commands into unquoted shelljs exec() strings in the unzip, 7z, tar-bz2 and gz extractors, running them with Node.js process privileges. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-110639? +

CVE-2026-110639 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0273, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110639? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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