CVE-2018-11787

In Apache Karaf version prior to 3.0.9, 4.0.9, 4.1.1, when the webconsole feature is installed in Karaf, it is available at .../system/console and requires authentication to access it. One part of the console is a Gogo shell/console that gives access to the command line console of Karaf via a Web browser, and when navigated to it is available at .../system/console/gogo. Trying to go directly to that URL does require authentication. And optional bundle that some applications use is the Pax Web Extender Whiteboard, it is part of the pax-war feature and perhaps others. When it is installed, the Gogo console becomes available at another URL .../gogo/, and that URL is not secured giving access to the Karaf console to unauthenticated users. A mitigation for the issue is to manually stop/uninstall Gogo plugin bundle that is installed with the webconsole feature, although of course this removes the console from the .../system/console application, not only from the unauthenticated endpoint. One could also stop/uninstall the Pax Web Extender Whiteboard, but other components/applications may require it and so their functionality would be reduced/compromised.

Published: 2018-09-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-11787 is rated Moderate Risk (63.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.57%). EPSS rose +1.83% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-11787

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.74% 2.57% +1.83%
2 2025-03-30 2.46% 0.74% -1.72%
3 2025-03-29 — 2.46% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11787

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2018-11787

GitHub Security Advisory for CVE-2018-11787

GHSA-cq9c-55r7-455x · Severity: high · Ecosystem: maven — Improper Authentication in Apache Karaf

OS Trackers for CVE-2018-11787

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2018-11787

Affected software / configurations for CVE-2018-11787

Vendor Product Version Raw CPE
apache karaf < 3.0.9 cpe:2.3:a:apache:karaf:*:*:*:*:*:*:*:*
apache karaf >= 4.0.0, < 4.0.9 cpe:2.3:a:apache:karaf:*:*:*:*:*:*:*:*
apache karaf >= 4.1.0, < 4.1.1 cpe:2.3:a:apache:karaf:*:*:*:*:*:*:*:*
apache karaf 4.0.0 cpe:2.3:a:apache:karaf:4.0.0:milestone1:*:*:*:*:*:*
apache karaf 4.0.0 cpe:2.3:a:apache:karaf:4.0.0:milestone2:*:*:*:*:*:*
apache karaf 4.0.0 cpe:2.3:a:apache:karaf:4.0.0:milestone3:*:*:*:*:*:*

References for CVE-2018-11787

cvelogic Threat Intelligence