CVE-2020-26030

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Source
https://cve.org/CVERecord?id=CVE-2020-26030
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26030.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-26030
Published
2020-12-28T08:15:11.257Z
Modified
2026-04-12T00:37:10.492306Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in Zammad before 3.4.1. There is an authentication bypass in the SSO endpoint via a crafted header, when SSO is not configured. An attacker can create a valid and authenticated session that can be used to perform any actions in the name of other users.

References

Affected packages

Git / github.com/zammad/zammad

Affected ranges

Type
GIT
Repo
https://github.com/zammad/zammad
Events
Introduced
9bdf6d7b816d4e55501e13d12dc0d9b53cf16f5c
Fixed
a12d45896b1518190fe00a120d6b92f8c29f1f54
Database specific 
{
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "1.0.0"
        },
        {
            "fixed": "3.4.1"
        }
    ],
    "cpe": "cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26030.json"