h3
npm5 known CVEs affecting this package
Aggregated from OSV, GitHub Security Advisories, NVD, and vendor advisories. Each CVE links to its full detail page with vendor advisories, patches, fixed versions, and remediation guidance.
CVEs affecting h3page 1 of 1
- CVE-2026-23527CRITICALCVSS 9.8EG 9.8✓ Fixed in 1.15.52026-01-15
H3 is a minimal H(TTP) framework built for high performance and portability. Prior to 1.15.5, there is a critical HTTP Request Smuggling vulnerability. readRawBody is doing a strict case-sensitive check for the Transfer-Encoding header. It…
- CVE-2026-33128CRITICALCVSS 10.0EG 10.0✓ Fixed in 1.15.62026-03-20
H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() an…
- CVE-2026-33129MEDIUMCVSS 5.9EG 5.9✓ Fixed in 2.0.1-rc.92026-03-20
H3 is a minimal H(TTP) framework. Versions 2.0.1-beta.0 through 2.0.0-rc.8 contain a Timing Side-Channel vulnerability in the requireBasicAuth function due to the use of unsafe string comparison (!==). This allows an attacker to deduce the…
- CVE-2026-33131CRITICALCVSS 9.1EG 9.1✓ Fixed in 2.0.1-rc.152026-03-20
H3 is a minimal H(TTP) framework. Versions 2.0.0-0 through 2.0.1-rc.14 contain a Host header spoofing vulnerability in the NodeRequestUrl (which extends FastURL) which allows middleware bypass. When event.url, event.url.hostname, or event.…
- CVE-2026-33490MEDIUMCVSS 5.3EG 5.3✓ Fixed in 2.0.1-rc.172026-03-26
H3 is a minimal H(TTP) framework. In versions 2.0.0-0 through 2.0.1-rc.16, the `mount()` method in h3 uses a simple `startsWith()` check to determine whether incoming requests fall under a mounted sub-application's path prefix. Because thi…
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