{"dataType": "CVE_RECORD", "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": {"providerMetadata": {"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"}], "source": {"discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-14T17:55:56.921737Z", "id": "CVE-2026-105106", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T17:56:36.316Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Koha", "vendor": "Koha Community", "versions": [{"lessThan": "24.11.00", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "24.11.20", "status": "affected", "version": "24.11.00", "versionType": "custom"}, {"lessThan": "25.05.15", "status": "affected", "version": "25.05.00", "versionType": "custom"}, {"lessThan": "25.11.09", "status": "affected", "version": "25.11.00", "versionType": "custom"}, {"lessThan": "26.05.04", "status": "affected", "version": "26.05.00", "versionType": "custom"}]}], "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"}], "cveTags": [], "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."}], "id": "CVE-2026-105106", "lastModified": "2026-10-14T18:17:23.040", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-105106", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-14T17:55:56.921737Z", "version": "2.0.3"}}]}, "published": "2026-10-14T08:17:03.587", "references": [{"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674"}, {"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://download.koha-community.org/"}, {"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://www.cve.org/CVERecord?id=CVE-2024-28739"}, {"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://www.cve.org/CVERecord?id=CVE-2025-30076"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674"}], "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "type": "Secondary"}]}

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{"created": "2026-10-14T15:45:03.062604+00:00", "updated": "2026-10-14T15:45:03.062609+00:00", "vendors": []}