CVE-2018-11768

user/group information can be corrupted across storing in fsimage and reading back from fsimage

7.5 HighFix available

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

6.61%Up 0.1 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: CVE-2018-11768
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: CVE-2018-11768
Updated: 2026-11-02

EUVDEUVD-2019-0752 No score

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: EUVD-2019-0752
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hx83-rpqf-m267 7.5

user/group information can be corrupted across storing in fsimage and reading back from fsimage

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: GHSA-hx83-rpqf-m267
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-119
Updated: 2026-11-02

OSV 7.5

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: CVE-2018-11768
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVGHSA-hx83-rpqf-m267 7.5

user/group information can be corrupted across storing in fsimage and reading back from fsimage

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Record: GHSA-hx83-rpqf-m267
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.hadoop:hadoop-main` Maven	2.2.0 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	3.0.0 up to 3.1.1	3.1.1
`org.apache.hadoop:hadoop-main` Maven	2.2.0 up to 2.8.5, plus listed versions 2.3.02.4.02.4.12.5.02.5.1 Show 20 moreShow less 2.5.22.6.02.6.12.6.22.6.32.6.42.6.52.7.02.7.12.7.22.7.32.7.42.7.52.7.62.7.72.8.02.8.12.8.22.8.32.8.4	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
`org.apache.hadoop:hadoop-main` Maven	3.0.0 up to 3.1.1, plus listed versions 3.0.13.0.23.0.33.1.0	3.1.1

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-2018-11768 is a high vulnerability (CVSS 7.5) in Apache Hadoop, published October 4, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.61%, the 93rd percentile. Fixed in org.apache.hadoop:hadoop-main 2.8.5.

References

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