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Vulnerability record · CVE-2018-17191 · published 31 December 2018

CVE-2018-17191: Apache netbeans vulnerability

Apache · Netbeans

Apache NetBeans (incubating) 9.0 NetBeans Proxy Auto-Configuration (PAC) interpretation is vulnerable for remote command execution (RCE). Using the nashorn script engine the environment of the javascript execution for the Proxy Auto-Configuration leaks privileged objects, that can be used to circumvent the execution limits. If a different script engine was used, no execution limits were in place. Both vectors allow remote code execution.

9.8 CVSS 3.0 Critical EPSS 7.8% · top 5.6%
9.8CVSS 3.0 base score, v2 7.5
7.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Apache NetBeans (incubating) 9.0 NetBeans Proxy Auto-Configuration (PAC) interpretation is vulnerable for remote command execution (RCE). Using the nashorn script engine the environment of the javascript execution for the Proxy Auto-Configuration leaks privileged objects, that can be used to circumvent the execution limits. If a different script engine was used, no execution limits were in place. Both vectors allow remote code execution.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/106352 Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/d1c37966a316a326ab4ff4d4bc056322e8adcbe984e8145c0ecda7fa%40%3Cdev.netbeans.apache.o
http://www.securityfocus.com/bid/106352 Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/d1c37966a316a326ab4ff4d4bc056322e8adcbe984e8145c0ecda7fa%40%3Cdev.netbeans.apache.o

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-11986Apache netbeans vulnerabilityTo be able to analyze gradle projects, the build scripts need to be executed. Apache NetBeans follows this pattern. This causes the code of the build…EPSS 9.9%9.1CVE-2019-17560Apache netbeans improper certificate validation vulnerabilityThe "Apache NetBeans" autoupdate system does not validate SSL certificates and hostnames for https based downloads. This allows an attacker to interc…EPSS 2.3%7.5CVE-2019-17561Apache netbeans improper verification of cryptographic signature vulnerabilityThe "Apache NetBeans" autoupdate system does not fully validate code signatures. An attacker could modify the downloaded nbm and include additional c…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2018-17191), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.