CVE-2020-7603Network attack vector

Arbitrary command execution via unsanitized options

Published Mar 15, 2020 · Updated Aug 4, 2024

OS command injection in closure-compiler-stream 0.1.15 and earlier allows attackers to execute arbitrary commands via crafted options. The exported function accepts an attacker-controlled options argument and passes its unsanitized values into compiler command construction in index.js. Exploitation requires a consuming build workflow to pass untrusted option values, after which injected commands run with that workflow's privileges.

CVSS severity9.8
Critical
EPSS probability2.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in closure-compiler-stream 0.1.15 and earlier allows attackers to execute arbitrary commands via crafted options. The exported function accepts an attacker-controlled options argument and passes its unsanitized values into compiler command construction in index.js. Exploitation requires a consuming build workflow to pass untrusted option values, after which injected commands run with that workflow's privileges.

The record

CVE
CVE-2020-7603
Published
Mar 15, 2020
Updated
Aug 4, 2024
Vendor
davidrekow
Product
closure-compiler-stream
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions including 0.1.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

davidrekow · closure-compiler-streamversion=All versions including 0.1.15

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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