Druid ingestion system Authenticated users can read data from other sources than intended
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.druid:druid-core | < 0.21.0 | 0.21.0 |
| npm package | fast-xml-parser | < 4.1.2 | 4.1.2 |
References
- https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-x3cc-x39p-42qx
- https://nvd.nist.gov/vuln/detail/CVE-2023-26920
- https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804
- https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7
- https://github.com/NaturalIntelligence/fast-xml-parser
- https://github.com/advisories/GHSA-793h-6f7r-6qvm
- https://nvd.nist.gov/vuln/detail/CVE-2021-26920
- https://lists.apache.org/thread.html/r29e45561343cc5cf7d3290ee0b0e94e565faab19c20d022df9b5e29c%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r304dfe56a5dfe1b2d9166b24d2c74ad1c6730338b20aef77a00ed2be@%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r61aab724cf97d80da7f02d50e9af6de5c7c40dd92dab7518746fbaa2@%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/rc9400a70d0ec5cdb8a3486fc5ddb0b5282961c0b63e764abfbcb9f5d@%3Cdev.druid.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/07/02/1
- http://www.openwall.com/lists/oss-security/2021/09/24/1
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-1321, CWE-863- Platform
- Java / Kotlin (Maven), npm
- Package
org.apache.druid:druid-core, fast-xml-parser- Disclosed
- 13.08.2021
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x3cc-x39p-42qx - CC BY 4.0
OSV / GitHub Advisory Database - GHSA-793h-6f7r-6qvm - CC BY 4.0
Vulnerability history: fast-xml-parser
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 12
- First → latest
- 08.2021 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 6
- Medium 3
- Low 2
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 2
- 2024: 1
- 2025: 0
- 2026: 8
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