CVE-2026-105106
highKoha is vulnerable to OS command injection in the Task Scheduler deletion path.
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
- https://download.koha-community.org/ 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
- https://www.cve.org/CVERecord?id=CVE-2024-28739 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
- https://www.cve.org/CVERecord?id=CVE-2025-30076 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
- https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674 134c704f-9b21-4f2e-91b3-4a467353bcc0