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Back to active CVEs
High · CVSS 8.8CVE-2026-105106

Koha authenticated OS command injection in tools/scheduler.pl via the jobid parameter when deleting a scheduled taskCVE-2026-105106

Answer in brief

CVE-2026-105106 records a High severity (CVSS 8.8) vulnerability in Koha authenticated OS command injection in tools/scheduler.pl via the jobid parameter when deleting a scheduled task. The current sources do not mark it as known exploited. The current feed maps Koha Community/Koha (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Koha Community/Koha (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Koha Community/Kohageneric>=0 <24.11.00 || >=24.11.00 <24.11.20 || >=25.05.00 <25.05.15 || >=25.11.00 <25.11.09 || >=26.05.00 <26.05.0424.11.20, 25.05.15, 25.11.09, 26.05.04

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Koha Community/Koha.
  2. 2Review the reported fix. Update Koha Community/Koha to 24.11.20 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • Source referencebugs.koha-community.org
  • Source referencedownload.koha-community.org
  • Source referencecve.org
  • Source referencecve.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Koha SQL injection in reports/cat_issues_top.pl via the Criteria, Filter and Limit request parametersSame koha community/koha package
  • PeproDev Branches Map <= 3.0.1 - Authenticated (Contributor+) Stored Cross-Site ScriptingSame generic ecosystem
  • Appointment Booking Plugin <= 5.7.2 - Unauthenticated Authentication Bypass to Customer Account Takeover via Insufficient Verification in create_wp_user_for_customer() username_exists FallbackSame generic ecosystem
  • Appointment Booking Plugin <= 5.7.3 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'booking[id]' and 'cart[id]' ParametersSame generic ecosystem
  • ShopMagic <= 4.9.0 - Unauthenticated Local File Inclusion via 'billing.first_name' ParameterSame generic ecosystem
  • Appointment Booking Plugin <= 5.7.3 - Authenticated (Subscriber+) Sensitive Information Exposure in 'first_name' Parameter Template Re-expansionSame generic ecosystem

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78
Source
CVE List V5
Source checked
Oct 14, 2026
References
4 linked sources
Open source record