Execution of untrusted code through config file
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as "tenable-jira-cloud". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().
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 |
|---|---|---|---|---|---|
| Tenable | integration-jira-cloud | before 1.1.21 | 1.1.21 | Patch available | CNA |
| — | tenable-jira-cloud (PyPI) | before 1.1.21 | 1.1.21 | Patch available | GHSA-8278-88vv-x98r |
- integration-jira-cloud VendorTenable Affected before 1.1.21 Fixed in 1.1.21 Patch available CNA
- tenable-jira-cloud (PyPI) Vendor— Affected before 1.1.21 Fixed in 1.1.21 Patch available GHSA-8278-88vv-x98r
Remediation
- Fix · CNA integration-jira-cloud (tenable) Fixed in 1.1.21
- Fix · GHSA-8278-88vv-x98r tenable-jira-cloud (PyPI) Fixed in 1.1.21 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21371
- 2026-10-03 Alias added: GHSA-8278-88vv-x98r
References
Patch 1
Advisory 4
Sources
- CVE-2021-21371 · CVE Program
- CVE-2021-21371 · NVD
- FIRST EPSS
- GHSA-8278-88vv-x98r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences