CVE-2026-33129

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Source
https://cve.org/CVERecord?id=CVE-2026-33129
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33129.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33129
Aliases
Published
2026-03-20T09:41:21Z
Modified
2026-10-28T02:30:39Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
h3 has an observable timing discrepancy in basic auth utils
Details

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 measuring the server's response time, effectively bypassing password complexity protections. This issue is fixed in version 2.0.1-rc.9.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-208"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33129.json"
}
References

Affected packages

Git / github.com/h3js/h3

Affected ranges

Type
GIT
Repo
https://github.com/h3js/h3
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2917e975bc11569f85371f179471ee7bc755bbd8
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.0.1-beta.0"
                },
                {
                    "fixed": "2.0.1-rc.9"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "original_tag": "v2.0.1-rc.9",
            "range": [
                {
                    "fixed": "2917e975bc11569f85371f179471ee7bc755bbd8"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.0.1-rc.9"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.0.1
v0.0.10
v0.0.11
v0.0.12
v0.0.13
v0.0.14
v0.0.15
v0.0.2
v0.0.3
v0.0.4
v0.0.5
v0.0.6
v0.0.7
v0.0.8
v0.0.9
v0.2.0
v0.2.1
v0.2.10
v0.2.11
v0.2.12
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.2
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.6.0
v0.7.0
v0.7.1
v0.7.10
v0.7.11
v0.7.12
v0.7.13
v0.7.14
v0.7.15
v0.7.16
v0.7.17
v0.7.18
v0.7.19
v0.7.2
v0.7.20
v0.7.21
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.8
v0.7.9
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.8.5
v0.8.6
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.1.0
v1.10.0
v1.10.1
v1.10.2
v1.11.0
v1.11.1
v1.12.0
v1.15.3
v1.2.0
v1.2.1
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.7.0
v1.7.1
v1.8.0
v1.8.0-rc.0
v1.8.0-rc.1
v1.8.0-rc.2
v1.8.0-rc.3
v1.8.1
v1.8.2
v1.9.0
v2.*
v2.0.0-beta.0
v2.0.0-beta.1
v2.0.0-beta.2
v2.0.0-beta.3
v2.0.0-beta.4
v2.0.0-beta.5
v2.0.0-rc.1
v2.0.1-rc.2
v2.0.1-rc.3
v2.0.1-rc.4
v2.0.1-rc.5
v2.0.1-rc.6
v2.0.1-rc.7
v2.0.1-rc.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33129.json"