High severity8.9NVD Advisory· Published Apr 29, 2021· Updated Jun 17, 2026
CVE-2021-21388
CVE-2021-21388
Description
systeminformation is an open source system and OS information library for node.js. A command injection vulnerability has been discovered in versions of systeminformation prior to 5.6.4. The issue has been fixed with a parameter check on user input. Please upgrade to version >= 5.6.4. If you cannot upgrade, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() and other commands. Only allow strings, reject any arrays. String sanitation works as expected.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
systeminformationnpm | < 5.6.4 | 5.6.4 |
Affected products
3- cpe:2.3:a:systeminformation:systeminformation:*:*:*:*:*:node.js:*:*Range: <5.6.4
- Range: < 5.6.4
Patches
Vulnerability mechanics
References
7- github.com/sebhildebrandt/systeminformation/commit/01ef56cd5824ed6da1c11b37013a027fdef67524nvdPatchThird Party AdvisoryWEB
- github.com/sebhildebrandt/systeminformation/commit/0be6fcd575c05687d1076d5cd6d75af2ebae5a46nvdPatchThird Party AdvisoryWEB
- github.com/sebhildebrandt/systeminformation/commit/7922366d707de7f20995fc8e30ac3153636bf35fnvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-jff2-qjw8-5476ghsaADVISORY
- github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-jff2-qjw8-5476nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-21388ghsaADVISORY
- www.npmjs.com/package/systeminformationnvdProductThird Party AdvisoryWEB
News mentions
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