Possible shell escape sequence injection vulnerability in Rack
Published Dec 5, 2022 · Updated Oct 23, 2026 · Also known as GHSA-wq4h-7r42-5hrr
Original summary
Normalized public record · Updated Oct 23, 2026
Possible shell escape sequence injection vulnerability in Rack
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
There is a possible shell escape sequence injection vulnerability in the Lint and CommonLogger components of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-30123.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 20%
- Aliases
- GHSA-wq4h-7r42-5hrr
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Dec 5, 2022 · Last refreshed Oct 23, 2026