CVE-2020-26245: sebhildebrandt systeminformation OS Command Injection
Vulnerability summary
CVE-2020-26245 is a critical (CVSS 9.8) OS Command Injection vulnerability in sebhildebrandt systeminformation. EPSS estimates a 2.23% chance of exploitation in the next 30 days, higher than 82.4% of scored vulnerabilities.
Timeline
- 27-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
npm package systeminformation before version 4.30.5 is vulnerable to Prototype Pollution leading to Command Injection. The issue was fixed with a rewrite of shell sanitations to avoid prototyper pollution problems. The issue is fixed in version 4.30.5. If you cannot upgrade, be sure to check or sanitize service parameter strings that are passed to si.inetChecksite().
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:LDiffers
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · NpmEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:LDiffers
EPSS trend
Probability
2.23%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
+0.28 pp
From 1.95% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
- CWE-471Modification of Assumed-Immutable Data (MAID)The product does not properly protect an assumed-immutable element from being modified by an attacker.
Affected systems
Debian1 product
- node-systeminformationAll versions (No fix recorded)
Npm1 product
- systeminformation< 4.30.5
Sebhildebrandt1 product
- systeminformation< 4.30.5
Systeminformation1 product
- systeminformation< 4.30.5
4 vendors · 4 products
References
4 links- github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-4v2w-h9jm-mqjgX Refsource CONFIRMWEBThird Party Advisory
- github.com/sebhildebrandt/systeminformation/commit/8113ff0e87b2f422a5756c48f1057575e73af016X Refsource MISCWEBPatchThird Party Advisory