harvey-woo cat5th/key-serializer v0.2.5 was discovered to contain a prototype pollution…
Priority MEDIUM 61CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
harvey-woo cat5th/key-serializer v0.2.5 was discovered to contain a prototype pollution via the function "query". This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00419 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | @cat5th/key-serializer (npm) | up to 0.2.5 | — | No fix listed | GHSA-whpx-g542-7c7v |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- @cat5th/key-serializer (npm) Vendor— Affected up to 0.2.5 Fixed in — No fix listed GHSA-whpx-g542-7c7v
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:harvey-woo:key-serializer:0.2.5:*:*:*:*:*:*:* | 0.2.5 | — | — |
- cpe:2.3:a:harvey-woo:key-serializer:0.2.5:*:*:*:*:*:*:* Versions 0.2.5 — ·—
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39018
- 2026-10-03 Alias added: GHSA-whpx-g542-7c7v
References
Sources
- CVE-2024-39018 · CVE Program
- CVE-2024-39018 · NVD
- FIRST EPSS
- GHSA-whpx-g542-7c7v · 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