CVE-2018-11765

mediumpriority · track · 32EPSS 0.052 · 92 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.21% (92nd) EPSS

CVSS 4.3 · medium

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.5

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

affected products (7)

Products and version ranges known to be affected.

n/a Apache Hadoop≤ Apache Hadoop 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5enisa_euvdEU
apache hadoop2.8.0 → 2.8.5nvdUScpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
apache hadoop2.9.0 → 2.9.2nvdUScpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
apache hadoop= 3.0.0nvdUScpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
Maven org.apache.hadoop:hadoop-main2.8.0 → 2.8.6osvUSpkg:maven/org.apache.hadoop/hadoop-main
Maven org.apache.hadoop:hadoop-main2.9.0 → 2.9.3osvUSpkg:maven/org.apache.hadoop/hadoop-main
Maven org.apache.hadoop:hadoop-main3.0.0-alpha2 → 3.0.1osvUSpkg:maven/org.apache.hadoop/hadoop-main

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-rhh9-cm65-3w54Improper Authentication in Apache Hadoop2021-04-30ghsa · osvUS
In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2020-09-30modified 2026-06-17

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+7720 more

references (41)

External citations — patches, advisories, analysis.

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