23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a…
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-434.
Summary
23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python's eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale.
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | yamale (PyPI) | before 3.0.8 | 3.0.8 | Patch available | GHSA-435p-f82x-mxwm |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- yamale (PyPI) Vendor— Affected before 3.0.8 Fixed in 3.0.8 Patch available GHSA-435p-f82x-mxwm
Remediation
- Fix · GHSA-435p-f82x-mxwm yamale (PyPI) Fixed in 3.0.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38305
- 2026-10-03 Alias added: GHSA-435p-f82x-mxwm
References
Sources
- CVE-2021-38305 · CVE Program
- CVE-2021-38305 · NVD
- FIRST EPSS
- GHSA-435p-f82x-mxwm · GitHub Advisory Database · CC BY 4.0
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