ljharb has 3 CVEs on record. 3 were published in the last 90 days. The busiest recent month was October 2026 with 3. The median CVSS is 5.3 (medium). Most affected products: qs (2), traverse (1).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 5.3
- Publish → KEV
- —
- Last 90 days
- 3 prev 0
Weakness classes
Products
- qs 2
- traverse 1
Worst active — by depth score
CVE-2026-110816Medium· 5.3### Summary `qs.stringify` with `arrayFormat: 'comma'` throws `TypeError: Cannot convert object to primitive value` when an array element cannot be coerced to a string, such as an object with an own non-callable `toString` (`{ "toStri…41CVE-2026-107353Medium· 6.5traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set()36CVE-2026-110910Low· 3.7qs.stringify with allowEmptyArrays does not encode the keys of empty arrays, allowing query string parameter injection20
ljharb vulnerabilities
CVEs affecting ljharb, newest first. Open any entry for full detail, references, and exploit status.
3 CVEsRSS
CVE-2026-110910Low· 3.7qs.stringify with allowEmptyArrays does not encode the keys of empty arrays, allowing query string parameter injection
### Summary `qs.stringify` with `allowEmptyArrays: true` writes the key of an empty array without encoding it, even though keys are encoded by default. A key that contains `&` (or the configured `delimiter`), `=`, or `#` therefore bec…
CVE-2026-110816Medium· 5.3PoC### Summary `qs.stringify` with `arrayFormat: 'comma'` throws `TypeError: Cannot convert object to primitive value` when an array element cannot be coerced to a string, such as an object with an own non-callable `toString` (`{ "toStri…
### Summary `qs.stringify` with `arrayFormat: 'comma'` throws `TypeError: Cannot convert object to primitive value` when an array element cannot be coerced to a string, such as an object with an own non-callable `toString` (`{ "toStri…
CVE-2026-107353Medium· 6.5traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set()
traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set(). When the path passed to set() crosses a primitive value, the next path segment is re…