Prototype Pollution in set-value
Published Aug 23, 2019 · Updated Oct 23, 2026 · Also known as GHSA-4g88-fppr-53pp
Original summary
Normalized public record · Updated Oct 23, 2026
Prototype Pollution in set-value
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Versions of `set-value` prior to 3.0.1 or 2.0.1 are vulnerable to Prototype Pollution. The `set` function fails to validate which Object properties it updates. This allows attackers to modify the prototype of Object, causing the addition or modification of an existing property on all objects.
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-4g88-fppr-53pp
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- snyk.io ↗
- [drat-dev] 20191029 [GitHub] [drat] ottlinger opened a new issue #202: Fix security issue in set-value ↗
- FEDORA-2020-1f1c94907b ↗
- FEDORA-2020-582515fa8a ↗
Record history
Published Aug 23, 2019 · Last refreshed Oct 23, 2026