In Apache Hadoop 2.7.4 to 2.7.6, the security fix for CVE-2016-6811 is incomplete.
Priority MEDIUM 44Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
In Apache Hadoop 2.7.4 to 2.7.6, the security fix for CVE-2016-6811 is incomplete. A user who can escalate to yarn user can possibly run arbitrary commands as root user.
Why it matters now
EPSS 0.03244 88th percentileScored 2026-11-07
Fix Fixed org.apache.hadoop:hadoop-main (Maven): 2.7.7
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Hadoop | Apache Hadoop 2.7.4 to 2.7.6 | — | No fix listed | CNA |
| — | org.apache.hadoop:hadoop-main (Maven) | 2.7.4 to before 2.7.7 | 2.7.7 | Patch available | GHSA-rqj9-cq6j-958r |
- Apache Hadoop VendorApache Affected Apache Hadoop 2.7.4 to 2.7.6 Fixed in — No fix listed CNA
- org.apache.hadoop:hadoop-main (Maven) Vendor— Affected 2.7.4 to before 2.7.7 Fixed in 2.7.7 Patch available GHSA-rqj9-cq6j-958r
Remediation
- Fix · GHSA-rqj9-cq6j-958r org.apache.hadoop:hadoop-main (Maven) Fixed in 2.7.7 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Fuse 7
- Red Hat JBoss Fuse 6
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11766
- 2026-10-03 Alias added: GHSA-rqj9-cq6j-958r
References
Advisory 2
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- TI-2021-15353 Heap buffer overflow in libhdfs native library CVSS 3.1CRITICAL 9.8
- TI-2018-05786 Path traversal in Apache Hadoop CVSS 3.0HIGH 8.8
- TI-2017-11489 Information disclosure in Apache Hadoop CVSS 3.0CRITICAL 9.8
Sources
- CVE-2018-11766 · CVE Program
- CVE-2018-11766 · NVD
- FIRST EPSS
- GHSA-rqj9-cq6j-958r · GitHub Advisory Database · CC BY 4.0
- CVE-2018-11766 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences