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TI-2021-14874 Aliases CVE-2021-36749GHSA-9p5g-vg43-mj5r

Incorrect authorization in Apache Druid

Priority HIGH 69CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass, Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-863, CWE-668 and the CVSS impact.

Summary

In the Druid ingestion system, the InputSource is used for reading data from a certain data source. However, the HTTP InputSource allows authenticated users to read data from other sources than intended, such as the local file system, with the privileges of the Druid server process. This is not an elevation of privilege when users access Druid directly, since Druid also provides the Local InputSource, which allows the same level of access. But it is problematic when users interact with Druid indirectly through an application that allows users to specify the HTTP InputSource, but not the Local InputSource. In this case, users could bypass the application-level restriction by passing a file URL to the HTTP InputSource. This issue was previously mentioned as being fixed in 0.21.0 as per CVE-2021-26920 but was not fixed in 0.21.0 or 0.21.1.

Why it matters now

EPSS 0.80907 99th percentileScored 2026-11-07
Fix Fixed org.apache.druid:druid-core (Maven): 0.22.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Druid0.21.1 and earlier – 0.21.1—No fix listedCNA
—org.apache.druid:druid-core (Maven)before 0.22.00.22.0Patch availableGHSA-9p5g-vg43-mj5r
  • Apache Druid VendorApache Affected 0.21.1 and earlier – 0.21.1 Fixed in — No fix listed CNA
  • org.apache.druid:druid-core (Maven) Vendor— Affected before 0.22.0 Fixed in 0.22.0 Patch available GHSA-9p5g-vg43-mj5r

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:druid:*:*:*:*:*:*:*:*before 0.22.0VulnerableApache
  • cpe:2.3:a:apache:druid:*:*:*:*:*:*:*:* Versions before 0.22.0 Vulnerable ·Apache

Remediation

  • Fix · GHSA-9p5g-vg43-mj5r org.apache.druid:druid-core (Maven) Fixed in 0.22.0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat OpenShift Container Platform 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-36749
  2. 2026-10-03 Alias added: GHSA-9p5g-vg43-mj5r

References

Advisory 3

Other 2

  • TI-2021-07779 Authenticated users can override system configurations in their requests which allows them to execute arbitrary code. CVSS 3.1HIGH 8.8
  • TI-2021-08525 Apache Druid Authenticated users can execute arbitrary code from malicious MySQL database systems. CVSS 3.1HIGH 8.8
  • TI-2026-19261 Apache Druid: Authentication Bypass via LDAP Anonymous Bind CVSS 3.1CRITICAL 9.8
  • TI-2025-36949 Apache Druid: Kerberos authenticaton chooses a cryptographically unsecure secret if not configured explicitly. CVSS 3.1CRITICAL 9.8
  • TI-2021-08526 Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intended CVSS 3.1MEDIUM 6.5
  • TI-2020-01882 Injection in Apache Druid CVSS 3.1MEDIUM 6.5
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences