CVE-2026-105106

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674
https://download.koha-community.org/
https://www.cve.org/CVERecord?id=CVE-2024-28739
https://www.cve.org/CVERecord?id=CVE-2025-30076
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674

Configurations

No configuration.

History

14 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674 -~~	() https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674 -

14 Oct 2026, 08:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-14 08:17

Updated : 2026-10-15 15:53

NVD link : CVE-2026-105106

Mitre link : CVE-2026-105106

CVE.ORG link : CVE-2026-105106

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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