CVE-2026-56021

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Source
https://cve.org/CVERecord?id=CVE-2026-56021
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56021.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56021
Published
2026-06-18T16:11:46Z
Modified
2026-10-28T02:31:07Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Webmin information disclosure via regex pattern
Details

Webmin allows unauthenticated attackers to read the contents of any file ending in .conf within module directories, due to a bypassable regex pattern.

Database specific 
{
    "cna_assigner": "cisa-cg",
    "cwe_ids": [
        "CWE-185",
        "CWE-777"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56021.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "*"
                        },
                        {
                            "last_affected": "*"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/webmin/webmin

Affected ranges

Type
GIT
Repo
https://github.com/webmin/webmin
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ce1ab74c6fe6a7c5f776ba8e62ec0fcf812414c9
Database specific
Show details 
{
    "extracted_events": [
        {
            "original_tag": "2.641",
            "range": [
                {
                    "fixed": "ce1ab74c6fe6a7c5f776ba8e62ec0fcf812414c9"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.700
1.710
1.720
1.730
1.740
1.750
1.760
1.770
1.780
1.790
1.800
1.801
1.810
1.820
1.830
1.831
1.840
1.850
1.860
1.870
1.880
1.890
1.900
1.910
1.920
1.930
1.940
1.941
1.950
1.951
1.953
1.954
1.955
1.960
1.962
1.970
1.972
1.973
1.974
1.980
1.982
1.983
1.984
1.990
1.991
1.993
1.994
1.995
1.996
1.998
1.999
2.*
2.000
2.001
2.003
2.010
2.011
2.012
2.013
2.020
2.021
2.100
2.103
2.104
2.105
2.110
2.111
2.200
2.201
2.202
2.301
2.302
2.400
2.401
2.402
2.501
2.510
2.520
2.600
2.610
2.620
2.621
2.630
2.640

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56021.json"