CVE-2018-11767

Improper Privilege Management in org.apache.hadoop:hadoop-main

7.4 HighFix available

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: High

Exploit likelihood

3.73%Up 0.1 points since Apr 14, 2021

What each source reports

NVD Score used 7.4

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: CVE-2018-11767
CVSS 3.0: 7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0: 5.8 MediumAV:N/AC:M/Au:N/C:P/I:N/A:P
Weakness: CWE-269
Updated: 2026-11-02

CVE List No score

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: CVE-2018-11767
Updated: 2026-11-02

EUVDEUVD-2019-0370 No score

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: EUVD-2019-0370
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5cf4-jqwp-584g 7.4

Improper Privilege Management in org.apache.hadoop:hadoop-main

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: GHSA-5cf4-jqwp-584g
CVSS 3.0: 7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness: CWE-269
Updated: 2026-11-02

OSV 7.4

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: CVE-2018-11767
CVSS 3.0: 7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated: 2026-11-02

OSVGHSA-5cf4-jqwp-584g 7.4

Improper Privilege Management in org.apache.hadoop:hadoop-main

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Record: GHSA-5cf4-jqwp-584g
CVSS 3.0: 7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness: CWE-269
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.hadoop:hadoop-main` Maven	2.7.5 up to 2.7.7	2.7.7
`org.apache.hadoop:hadoop-main` Maven	2.8.3 up to 2.8.5	2.8.5
`org.apache.hadoop:hadoop-main` Maven	2.9.0 up to 2.9.2	2.9.2
`org.apache.hadoop:hadoop-main` Maven	2.7.5 up to 2.7.7, plus listed versions 2.7.6	2.7.7
`org.apache.hadoop:hadoop-main` Maven	2.8.3 up to 2.8.5, plus listed versions 2.8.4	2.8.5
`org.apache.hadoop:hadoop-main` Maven	2.9.0 up to 2.9.2, plus listed versions 2.9.1	2.9.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, products	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11767 is a high vulnerability (CVSS 7.4) in Apache Hadoop, published March 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.73%, the 89th percentile. Fixed in org.apache.hadoop:hadoop-main 2.7.7.

References

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