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h3js vulnerabilities

6 published CVES affecting h3js, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
6
Critical
3
High
0
Medium
3
Low
0
Unscored
0
CISA KEV
0
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Latest h3js CVEs

Newest publication first

  1. CriticalCVSS 9.1 EPSS 0.40%

    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.url._url is accessed, such as in a loggin...

  2. MediumCVSS 5.9 EPSS 0.33%

    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 valid password character-by-character by...

  3. CriticalCVSS 9.8 EPSS 0.63%

    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 explicitly looks for "chunked", but per...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.