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CVE-2018-11764

29
FAUCET Score

CVE-2018-11764 is a high-severity authentication bypass vulnerability affecting Apache Hadoop versions 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. This flaw allows authenticated users to impersonate any other user on the system, even without proxy user configurations, due to a broken authentication check in a web endpoint. With a CVSS score of 8.8 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.0CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:3.0.0:-:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:3.0.0:alpha4:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:apache:hadoop:3.0.0:beta1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.39%
Probability of exploitation in next 30 days
EPSS Percentile
82.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0239 is in the 81st percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.hadoop:hadoop-mainFixed in: 3.0.1

Vendor Advisories (2)

mavenGHSA-4fh8-pm7g-pmxqhigh

Authentication bypass in Apache Hadoop

Feb 10, 2022
redhatCVE-2018-11764Important

hadoop: privilege escalation in web endpoint

Oct 21, 2020

References

lists.apache.org / thread.html/r790ad0a049cde713b93589ecfd4dd2766fda0fc6807eedb6cf69f5c1%40%3Cgeneral.hadoop.apache.org%3E
Mailing ListVendor Advisory
security.netapp.com / advisory/ntap-20201103-0003
Third Party Advisory