CVE-2018-11804

Spark's Apache Maven-based build includes a convenience script, 'build/mvn', that downloads and runs a zinc server to speed up compilation. It has been included in release branches since 1.3.x, up to and including master. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.

Published: 2018-10-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-11804 is rated High Risk (67.2/100): CVSS High severity, with high exploitation likelihood (EPSS 5.70%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.05% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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-2018-11804

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 0.65% 5.70% +5.05%
2 2026-05-10 0.72% 0.65% -0.07%
3 2025-12-10 0.72%

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11804

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 3.6 [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-2018-11804

GitHub Security Advisory for CVE-2018-11804

GHSA-62g2-m955-v383 · Severity: high · Ecosystem: maven — Improper Input Validation in Apache Spark

OS Trackers for CVE-2018-11804

vendor priority summary link
suse medium CVE-2018-11804 severity moderate: SUSE including 2 source package names (spark, spark-core), 6 product×package rows across 6 product lines (HPE Helion OpenStack 8, SUSE Manager Server 3.0, … (6 product lines)): Known Not Affected 6. https://www.suse.com/security/cve/CVE-2018-11804/

Affected software / configurations for CVE-2018-11804

Vendor Product Version Raw CPE
apache spark >= 1.3.0, < 2.2.3 cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*
apache spark >= 2.3.0, < 2.3.3 cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*

References for CVE-2018-11804

cvelogic Threat Intelligence