CVE-2018-11764
Authentication bypass in Apache Hadoop
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
CVE-2018-11764- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List No score
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
CVE-2018-11764- Updated
- 2026-11-02
EUVDEUVD-2022-0810 No score
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
EUVD-2022-0810- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4fh8-pm7g-pmxq
Authentication bypass in Apache Hadoop
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
GHSA-4fh8-pm7g-pmxq- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
OSV
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
CVE-2018-11764- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-4fh8-pm7g-pmxq
Authentication bypass in Apache Hadoop
Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
- Record
GHSA-4fh8-pm7g-pmxq- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.hadoop:hadoop-mainMaven |
3.0.0-alpha4 to 3.0.0-alpha4 | 3.0.1 |
org.apache.hadoop:hadoop-mainMaven |
3.0.0-beta1 to 3.0.0-beta1 | 3.0.1 |
org.apache.hadoop:hadoop-mainMaven |
3.0.0 to 3.0.0 | 3.0.1 |
org.apache.hadoop:hadoop-mainMaven |
3.0.0-alpha4 up to 3.0.1, plus listed versions 3.0.03.0.0-beta1 |
3.0.1 |
org.apache.hadoop:hadoop-mainMaven |
3.0.0-beta1 up to 3.0.1, plus listed versions 3.0.0 |
3.0.1 |
org.apache.hadoop:hadoop-mainMaven |
3.0.0 up to 3.0.1 | 3.0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-11764 is a high vulnerability (CVSS 8.8) in Apache Hadoop, published October 21, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.39%, the 84th percentile. Fixed in org.apache.hadoop:hadoop-main 3.0.1.