{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-105106",
        "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "state": "PUBLISHED",
        "assignerShortName": "TuranSec",
        "dateReserved": "2026-10-03T11:45:52.353Z",
        "datePublished": "2026-10-14T07:23:03.069Z",
        "dateUpdated": "2026-10-14T17:56:36.316Z"
    },
    "containers": {
        "cna": {
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                "orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
                "shortName": "TuranSec",
                "dateUpdated": "2026-10-14T07:23:03.069Z"
            },
            "title": "Koha authenticated OS command injection in tools/scheduler.pl via the jobid parameter when deleting a scheduled task",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-78",
                            "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Koha Community",
                    "product": "Koha",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "24.11.00",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "24.11.00",
                            "lessThan": "24.11.20",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "25.05.00",
                            "lessThan": "25.05.15",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "25.11.00",
                            "lessThan": "25.11.09",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "26.05.00",
                            "lessThan": "26.05.04",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Koha is vulnerable to OS command injection in the Task Scheduler deletion path. The tools/scheduler.pl handler accepts the jobid request parameter for op=cud-delete and passes it to C4::Scheduler::remove_at_job without validating it. Schedule::At::remove substitutes the supplied job ID into an atrm command string without quoting or escaping it and executes the command through a single-argument system() call, which invokes the shell. An authenticated staff user with the tools => schedule_tasks permission can therefore execute arbitrary operating-system commands as the Koha web/application user by supplying shell metacharacters in jobid. The issue is fixed in Koha 24.11.20, 25.05.15, 25.11.09, and 26.05.04, and in the 26.11 development branch.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>Koha is vulnerable to OS command injection in the Task Scheduler deletion path. The tools/scheduler.pl handler accepts the jobid request parameter for op=cud-delete and passes it to C4::Scheduler::remove_at_job without validating it. Schedule::At::remove substitutes the supplied job ID into an atrm command string without quoting or escaping it and executes the command through a single-argument system() call, which invokes the shell. An authenticated staff user with the tools =&gt; schedule_tasks permission can therefore execute arbitrary operating-system commands as the Koha web/application user by supplying shell metacharacters in jobid. The issue is fixed in Koha 24.11.20, 25.05.15, 25.11.09, and 26.05.04, and in the 26.11 development branch.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://download.koha-community.org/"
                },
                {
                    "url": "https://www.cve.org/CVERecord?id=CVE-2025-30076",
                    "tags": [
                        "related"
                    ]
                },
                {
                    "url": "https://www.cve.org/CVERecord?id=CVE-2024-28739",
                    "tags": [
                        "related"
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "HIGH",
                        "baseScore": 8.8,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Sanjar Tulkinov Anvar o'g'li",
                    "type": "finder"
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            ],
            "source": {
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674",
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                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-14T17:55:56.921737Z",
                                "id": "CVE-2026-105106",
                                "options": [
                                    {
                                        "Exploitation": "poc"
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                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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