{"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"}}]}}