Reflected XSS on certain HTTP endpoints
Priority LOW 32CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
In Apache Druid 0.22.1 and earlier, certain specially-crafted links result in unescaped URL parameters being sent back in HTML responses. This makes it possible to execute reflected XSS attacks.
Why it matters now
EPSS 0.02275 83rd percentileScored 2026-11-07
Fix Fixed org.apache.druid:druid (Maven): 0.23.0
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 Druid | Apache Druid – 0.22.1 | — | No fix listed | CNA |
| — | org.apache.druid:druid (Maven) | before 0.23.0 | 0.23.0 | Patch available | GHSA-8rmv-98m4-g5c6 |
- Apache Druid VendorApache Affected Apache Druid – 0.22.1 Fixed in — No fix listed CNA
- org.apache.druid:druid (Maven) Vendor— Affected before 0.23.0 Fixed in 0.23.0 Patch available GHSA-8rmv-98m4-g5c6
Remediation
- Fix · GHSA-8rmv-98m4-g5c6 org.apache.druid:druid (Maven) Fixed in 0.23.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44791
- 2026-10-03 Alias added: GHSA-8rmv-98m4-g5c6
References
More Apache Druid vulnerabilities
- 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-2021-14874 Incorrect authorization in Apache Druid CVSS 3.1MEDIUM 6.5
- 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
Sources
- CVE-2021-44791 · CVE Program
- CVE-2021-44791 · NVD
- FIRST EPSS
- GHSA-8rmv-98m4-g5c6 · GitHub Advisory Database · CC BY 4.0
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