DataDog API Client contains a Local Information Disclosure Vulnerability
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
The Java client for the Datadog API before version 1.0.0-beta.9 has a local information disclosure of sensitive information downloaded via the API using the API Client. The Datadog API is executed on a unix-like system with multiple users. The API is used to download a file containing sensitive information. This sensitive information is exposed locally to other users. This vulnerability exists in the API Client for version 1 and 2. The method `prepareDownloadFilecreates` creates a temporary file with the permissions bits of `-rw-r--r--` on unix-like systems. On unix-like systems, the system temporary directory is shared between users. As such, the contents of the file downloaded via the `downloadFileFromResponse` method will be visible to all other users on the local system. Analysis of the finding determined that the affected code was unused, meaning that the exploitation likelihood is low. The unused code has been removed, effectively mitigating this issue. This issue has been patched in version 1.0.0-beta.9. As a workaround one may specify `java.io.tmpdir` when starting the JVM with the flag `-Djava.io.tmpdir`, specifying a path to a directory with `drw-------` permissions owned by `dd-agent`.
Why it matters now
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 |
|---|---|---|---|---|---|
| DataDog | datadog-api-client-java | before 1.0.0-beta.9 | 1.0.0-beta.9 | Patch available | CNA |
| — | com.datadoghq:datadog-api-client (Maven) | 1.0.0-beta.6 to before 1.0.0-beta.9 | 1.0.0-beta.9 | Patch available | GHSA-2cxf-6567-7pp6 |
- datadog-api-client-java VendorDataDog Affected before 1.0.0-beta.9 Fixed in 1.0.0-beta.9 Patch available CNA
- com.datadoghq:datadog-api-client (Maven) Vendor— Affected 1.0.0-beta.6 to before 1.0.0-beta.9 Fixed in 1.0.0-beta.9 Patch available GHSA-2cxf-6567-7pp6
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta1:*:*:*:*:*:* | 1.0.0 beta1 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta2:*:*:*:*:*:* | 1.0.0 beta2 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta3:*:*:*:*:*:* | 1.0.0 beta3 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta4:*:*:*:*:*:* | 1.0.0 beta4 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta5:*:*:*:*:*:* | 1.0.0 beta5 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta6:*:*:*:*:*:* | 1.0.0 beta6 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta7:*:*:*:*:*:* | 1.0.0 beta7 | Vulnerable | Datadoghq |
| cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta8:*:*:*:*:*:* | 1.0.0 beta8 | Vulnerable | Datadoghq |
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta1:*:*:*:*:*:* Versions 1.0.0 beta1 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta2:*:*:*:*:*:* Versions 1.0.0 beta2 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta3:*:*:*:*:*:* Versions 1.0.0 beta3 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta4:*:*:*:*:*:* Versions 1.0.0 beta4 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta5:*:*:*:*:*:* Versions 1.0.0 beta5 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta6:*:*:*:*:*:* Versions 1.0.0 beta6 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta7:*:*:*:*:*:* Versions 1.0.0 beta7 Vulnerable ·Datadoghq
- cpe:2.3:a:datadoghq:datadog-api-client-java:1.0.0:beta8:*:*:*:*:*:* Versions 1.0.0 beta8 Vulnerable ·Datadoghq
Remediation
- Fix · CNA datadog-api-client-java (DataDog) Fixed in 1.0.0-beta.9
- Fix · GHSA-2cxf-6567-7pp6 com.datadoghq:datadog-api-client (Maven) Fixed in 1.0.0-beta.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21331
- 2026-10-03 Alias added: GHSA-2cxf-6567-7pp6
- 2026-11-03 EPSS moved to the 50th–90th percentile
References
More DataDog vulnerabilities
- TI-2026-32833 GuardDog: Blind GitHub URL rewrite in remote project scanning causes SSRF and `GH_TOKEN` exfiltration CVSS 3.1HIGH 8.2
- TI-2022-07587 GuardDog vulnerable to arbitrary file write when scanning a specially-crafted remote PyPI package CVSS 3.1MEDIUM 6.5
- TI-2026-26107 dd-trace-java: Unsafe deserialization in RMI instrumentation may lead to remote code execution CVSS 4.0CRITICAL 9.3
- TI-2026-81528 ReDoS in dd-trace URL query string obfuscation CVSS 4.0HIGH 8.7
- TI-2026-80927 ReDoS in Datadog dd-trace-py URL query string obfuscation CVSS 4.0HIGH 8.7
- TI-2023-20052 import-in-the-middle allows unsanitized user controlled input in module generation CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-21331 · CVE Program
- CVE-2021-21331 · NVD
- FIRST EPSS
- GHSA-2cxf-6567-7pp6 · GitHub Advisory Database · CC BY 4.0
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