CVE-2018-11768

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data tampering.

Exploit odds

6.6% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2019-10-04 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:36 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 6.6% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2019-10-04 14:15 UTC

Last modified

2026-06-17 01:36 UTC

Exploit probability

6.6% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Apache Hadoop ≤ 2.8.4
• Apache Hadoop ≤ 2.9.1
• Apache Hadoop ≤ 3.0.3
• Apache Hadoop ≤ 3.1.1
• Apache Hadoop 2.0.0
• Apache Hadoop 2.0.1
• Apache Hadoop 2.0.2
• Apache Hadoop 2.0.3

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Is it in your code?

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