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Vulnerability record · CVE-2020-11986 · published 9 September 2020

CVE-2020-11986: Apache netbeans vulnerability

Apache · Netbeans

To 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 script to be invoked at load time of the project. Apache NetBeans up to and including 12.0 did not request consent from the user for the analysis of the project at load time. This in turn will run potentially malicious code, from an external source, without the consent of the user.

9.8 CVSS 3.1 Critical EPSS 9.9% · top 4.6%
9.8CVSS 3.1 base score, v2 7.5
9.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

To 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 script to be invoked at load time of the project. Apache NetBeans up to and including 12.0 did not request consent from the user for the analysis of the project at load time. This in turn will run potentially malicious code, from an external source, without the consent of the user.

CVSS:3.1/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
https://lists.apache.org/thread.html/r0fb2ba21a0469f64c2dff945dbe68f7b1122e1bff2b2b46271682406%40%3Cnotifications.netbea
https://lists.apache.org/thread.html/ra81cdcf325bf4ea085c178f95ed6b50d4f1c095be50577b2f9b88984%40%3Cnotifications.netbea
https://lists.apache.org/thread.html/rbb8ea1b684e73107a0a6a30245ad6112bec2e6e171368c808e69217e%40%3Cannounce.netbeans.ap Mailing ListVendor Advisory
https://lists.apache.org/thread.html/r0fb2ba21a0469f64c2dff945dbe68f7b1122e1bff2b2b46271682406%40%3Cnotifications.netbea
https://lists.apache.org/thread.html/ra81cdcf325bf4ea085c178f95ed6b50d4f1c095be50577b2f9b88984%40%3Cnotifications.netbea
https://lists.apache.org/thread.html/rbb8ea1b684e73107a0a6a30245ad6112bec2e6e171368c808e69217e%40%3Cannounce.netbeans.ap Mailing ListVendor Advisory

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Related vulnerabilities

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

9.8CVE-2018-17191Apache netbeans vulnerabilityApache NetBeans (incubating) 9.0 NetBeans Proxy Auto-Configuration (PAC) interpretation is vulnerable for remote command execution (RCE). Using the n…EPSS 7.8%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-2020-11986), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.