CVE-2026-33638

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Source
https://cve.org/CVERecord?id=CVE-2026-33638
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33638.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33638
Aliases
Downstream
Related
Published
2026-03-26T20:52:40.464Z
Modified
2026-07-15T01:48:59.303618994Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Ech0 authenticated user-list exposed data via public `/api/allusers` endpoint
Details

Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, GET /api/allusers is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. A fix is available in v4.2.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33638.json",
    "cwe_ids": [
        "CWE-862"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/lin-snow/ech0

Affected ranges

Type
GIT
Repo
https://github.com/lin-snow/ech0
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7f236aed761da27f971ad289c4a26af0d9eb3e92
Fixed
acbf1fd71011e6b9e1e6a911128056a19862f681
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.2.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:ech0:ech0:*:*:*:*:*:*:*:*"
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.2.8
v1.2.9
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.3.6
v1.3.7
v1.3.8
v1.3.9
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v2.*
v2.0.0
v2.1.0
v2.1.1
v2.1.10
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.1.9
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.1
v2.5.10
v2.5.3
v2.5.4
v2.5.5
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.1
v2.6.10
v2.6.2
v2.6.3
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.6.8
v2.6.9
v2.7.0
v2.7.1
v2.7.10
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.6
v2.7.7
v2.7.8
v2.7.9
v2.8.0
v2.8.1
v2.8.10
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.6
v2.8.7
v2.8.8
v2.8.9
v2.9.0
v2.9.1
v2.9.10
v2.9.2
v2.9.3
v2.9.4
v2.9.5
v2.9.6
v2.9.7
v2.9.8
v2.9.9
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v4.*
v4.0.0
v4.0.2
v4.1.0
v4.1.1
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.1.7
v4.1.8
v4.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33638.json"