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CVE-2018-11770

55
FAUCET Score

CVE-2018-11770 describes an authentication bypass vulnerability in Apache Spark versions 1.3.0 and later, specifically within its standalone master's REST API for job submission. This API, also used by Mesos in cluster mode, lacks authentication despite the existence of 'spark.authenticate.secret' for spark-submit. An attacker could exploit this to run driver programs without authentication, though not launch executors. The vulnerability has a CVSS score of 4.2 (MEDIUM) due to its network-based attack vector and low impact on confidentiality and integrity, but a high attack complexity. Despite its medium CVSS, its EPSS score is exceptionally high (0.8957), indicating a significant likelihood of exploitation, and a Metasploit module exists for unauthenticated command execution. There is no evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.3.0, < 2.4.0CPE matchmatch criteria
cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.2MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
65.83%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Apache Spark Unauthenticated Command Execution · Dec 12, 2017
This CVE's current EPSS score of 0.6583 is in the 100th percentile among its peer group of 1,424 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Advisories (2)

mavenGHSA-w4r4-65mg-45x2medium

org.apache.spark:spark-core_2.10 and org.apache.spark:spark-core_2.11 Improper Authentication vulnerability

Nov 9, 2018
redhatCVE-2018-11770Moderate

spark: Missing authentication allows users to run driver programs via the REST API

Aug 14, 2018

References

lists.apache.org / thread.html/bd8e51314041451a2acd720e9223fc1c15a263ccacb396a75b1fc485%40%3Cdev.spark.apache.org%3E
Mailing ListThird Party Advisory
spark.apache.org / security.html
ExploitMitigationVendor Advisory
securityfocus.com / bid/105097
Broken LinkThird Party AdvisoryVDB Entry