GHSA-g9cg-h3jm-cwrc
Prototype Pollution in @hapi/subtext
GHSA-g9cg-h3jm-cwrc is a vulnerability with no CVSS score yet in @hapi/pez, published September 3, 2020. No source lists public exploit code. Fixed in @hapi/pez 5.0.1.
- Severity
- UnratedNo CVSS score yet
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
5.0.1@hapi/pez
Description
Versions of @hapi/pez prior to 4.1.2 or 5.0.1 are vulnerable to Prototype Pollution. A multipart payload can be constructed in a way that one of the parts’ content can be set as the entire payload object’s prototype. If this prototype contains data, it may bypass other validation rules which enforce access and privacy. If this prototype evaluates to null, it can cause unhandled exceptions when the request payload is accessed.
Recommendation
Upgrade to versions 5.0.1 or later. There is a fix available for version 4.1.2, but it only available for direct download from the repository.
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@hapi/peznpm | before 5.0.1 | 5.0.1 |
What each source reports
GitHub AdvisoriesNo score
Prototype Pollution in @hapi/subtext
Versions of @hapi/pez prior to 4.1.2 or 5.0.1 are vulnerable to Prototype Pollution. A multipart payload can be constructed in a way that one of the parts’ content can be set as the entire payload object’s prototype. If this prototype contains data, it may bypass other validation rules which enforce access and privacy. If this prototype evaluates to null, it can cause unhandled exceptions when the request payload is accessed.
Recommendation
Upgrade to versions 5.0.1 or later. There is a fix available for version 4.1.2, but it only available for direct download from the repository.
- Record
GHSA-g9cg-h3jm-cwrc- Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVNo score
Prototype Pollution in @hapi/subtext
Versions of @hapi/pez prior to 4.1.2 or 5.0.1 are vulnerable to Prototype Pollution. A multipart payload can be constructed in a way that one of the parts’ content can be set as the entire payload object’s prototype. If this prototype contains data, it may bypass other validation rules which enforce access and privacy. If this prototype evaluates to null, it can cause unhandled exceptions when the request payload is accessed.
Recommendation
Upgrade to versions 5.0.1 or later. There is a fix available for version 4.1.2, but it only available for direct download from the repository.
- Record
GHSA-g9cg-h3jm-cwrc- Weakness
- CWE-1321
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.