How severe is CVE-2018-11767?

CVE-2018-11767 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2018-11767 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11767?

CVE-2018-11767 affects Apache Hadoop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11767?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-11767 published?

CVE-2018-11767 was published on 2019-03-21 and last updated on 2026-06-17.

CVE-2018-11767

CVE-2018-11767 is a high-severity vulnerability in Apache Hadoop with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Apache Hadoop
Published: 2019-03-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-11767?: 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.
How severe is CVE-2018-11767?: CVE-2018-11767 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2018-11767 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11767?: CVE-2018-11767 affects Apache Hadoop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11767?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-11767 published?: CVE-2018-11767 was published on 2019-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*

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