CVE-2018-12536

In Eclipse Jetty Server, all 9.x versions, on webapps deployed using default Error Handling, when an intentionally bad query arrives that doesn't match a dynamic url-pattern, and is eventually handled by the DefaultServlet's static file serving, the bad characters can trigger a java.nio.file.InvalidPathException which includes the full path to the base resource directory that the DefaultServlet and/or webapp is using. If this InvalidPathException is then handled by the default Error Handler, the InvalidPathException message is included in the error response, revealing the full server path to the requesting system.

Published: 2018-06-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-12536 is rated Moderate Risk (54/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.33%). Core evidence: EPSS rose +1.36% over the last day, indicating growing attacker interest. Mandatory action: 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-2018-12536

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 2.97% 4.33% +1.36%
2 2026-06-14 3.51% 2.97% -0.54%
3 2026-05-12 3.51%

Full EPSS history (60 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-12536

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N 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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-12536

GitHub Security Advisory for CVE-2018-12536

GHSA-9rgv-h7x4-qw8g · Severity: medium · Ecosystem: maven — Eclipse Jetty Server generates error message containing sensitive information

OS Trackers for CVE-2018-12536

vendor priority summary link
debian low CVE-2018-12536 low priority: Debian including 1 source packages (jetty9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-12536
redhat low https://access.redhat.com/security/cve/CVE-2018-12536
ubuntu low CVE-2018-12536 low priority: Ubuntu including 2 source packages (jetty8, jetty9), 40 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 19, DNE 18, ignored 1, needed 1, released 1. https://ubuntu.com/security/CVE-2018-12536

Affected software / configurations for CVE-2018-12536

Vendor Product Version Raw CPE
eclipse jetty >= 9.0.0, <= 9.2.26 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 9.3.0, < 9.3.24 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
eclipse jetty >= 9.4.0, < 9.4.11 cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 7.1 cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 15.0 cpe:2.3:a:oracle:retail_xstore_point_of_service:15.0:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 16.0.0 cpe:2.3:a:oracle:retail_xstore_point_of_service:16.0.0:*:*:*:*:*:*:*
oracle retail_xstore_point_of_service 17.0 cpe:2.3:a:oracle:retail_xstore_point_of_service:17.0:*:*:*:*:*:*:*

References for CVE-2018-12536

cvelogic Threat Intelligence