{"id":"CVE-2026-105106","state":"PUBLISHED","title":"Koha authenticated OS command injection in tools/scheduler.pl via the jobid parameter when deleting a scheduled task","description":"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.","publishedAt":"2026-10-14T07:23:03.069Z","updatedAt":"2026-10-14T17:56:36.316Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"TuranSec"},"assigner":"TuranSec","products":["Koha Community Koha"],"affected":[{"vendor":"Koha Community","product":"Koha","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"24.11.00","versionType":"custom"},{"version":"24.11.00","status":"affected","lessThan":"24.11.20","versionType":"custom"},{"version":"25.05.00","status":"affected","lessThan":"25.05.15","versionType":"custom"},{"version":"25.11.00","status":"affected","lessThan":"25.11.09","versionType":"custom"},{"version":"26.05.00","status":"affected","lessThan":"26.05.04","versionType":"custom"}]}],"references":["https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674","https://download.koha-community.org/","https://www.cve.org/CVERecord?id=CVE-2025-30076","https://www.cve.org/CVERecord?id=CVE-2024-28739"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105106.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105106","state":"PUBLISHED","datePublished":"2026-10-14T07:23:03.069Z","dateUpdated":"2026-10-14T17:56:36.316Z","assignerShortName":"TuranSec","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateReserved":"2026-10-03T11:45:52.353Z"},"containers":{"cna":{"title":"Koha authenticated OS command injection in tools/scheduler.pl via the jobid parameter when deleting a scheduled task","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."}],"affected":[{"vendor":"Koha Community","product":"Koha","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"24.11.00","versionType":"custom"},{"version":"24.11.00","status":"affected","lessThan":"24.11.20","versionType":"custom"},{"version":"25.05.00","status":"affected","lessThan":"25.05.15","versionType":"custom"},{"version":"25.11.00","status":"affected","lessThan":"25.11.09","versionType":"custom"},{"version":"26.05.00","status":"affected","lessThan":"26.05.04","versionType":"custom"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"TuranSec","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateUpdated":"2026-10-14T07:23:03.069Z"},"credits":[{"lang":"en","value":"Sanjar Tulkinov Anvar o'g'li","type":"finder"}],"source":{"discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-14T17:56:36.316Z"}}]}}}