CVE-2026-123201

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Source
https://cve.org/CVERecord?id=CVE-2026-123201
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123201.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-123201
Published
2026-11-05T18:16:37Z
Modified
2026-11-05T21:32:23Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
Summary
buku through 5.1.1 SSRF via bukuserver fetch_data and network_handle API
Details

Buku (bukuserver) through 5.1.1 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server request internal hosts by supplying a url parameter to /api/fetch_data or /api/network_handle. Attackers can target loopback, private, or cloud metadata IP addresses, which pass the weak is_bad_url() check and follow redirects, to discover internal services and read their page titles, descriptions, and keywords.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123201.json"
}
References

Affected packages

Git / github.com/jarun/buku

Affected ranges

Type
GIT
Repo
https://github.com/jarun/buku
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
e232ac357cbba22fe69d6d6dfc0d35512a4cd313
Fixed
13f6497afc974f02f1069b760772abe8815d1675
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "5.1.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "13f6497afc974f02f1069b760772abe8815d1675"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

1.*
1.0
1.1
1.2
1.4
1.5
1.6
1.7
1.8
1.9
Other
pre-bootstrap4
v2.*
v2.0
v2.1
v2.2
v2.3
v2.4
v2.5
v2.6
v2.7
v2.8
v2.9
v3.*
v3.0
v3.1
v3.2
v3.3
v3.3.1
v3.4
v3.5
v3.6
v3.7
v3.8
v3.9
v4.*
v4.0
v4.1
v4.2
v4.2.1
v4.2.2
v4.3
v4.4
v4.5
v4.6
v4.7
v4.8
v4.9
v5.*
v5.0
v5.1
v5.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123201.json"