Vendor
UnJS vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in UnJS: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-44373, was published on 13 May 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About UnJS
A collective of developers maintaining a suite of modular JavaScript tools and libraries.
UnJS technologies
Latest UnJS vulnerabilities
- CVE-2026-44373: Nitro proxy route rule bypass via percent-encoded path traversalmediumCVSS 5.3EPSS 0.6%
- CVE-2026-44372: Nitro open redirect via protocol-relative URL bypass in wildcard rulesmediumCVSS 6.1EPSS 0.4%
- unjs unhead script injection in streaming SSR streamKeylowCVSS 2.3
- CVE-2026-35209: unjs defu prototype pollution in defaults merginghighCVSS 7.5EPSS 0.5%
Most severe UnJS vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-35209: unjs defu prototype pollution in defaults merginghighCVSS 7.5EPSS 0.5%
- CVE-2026-44372: Nitro open redirect via protocol-relative URL bypass in wildcard rulesmediumCVSS 6.1EPSS 0.4%
- CVE-2026-44373: Nitro proxy route rule bypass via percent-encoded path traversalmediumCVSS 5.3EPSS 0.6%
- unjs unhead script injection in streaming SSR streamKeylowCVSS 2.3
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/unjs.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "UnJS vulnerabilities", https://junglewise.ai/threats/vendors/unjs, 26 September 2026.