FKIE_CVE-2026-105106

Vulnerability from fkie_nvd - Published: 2026-10-14 08:17 - Updated: 2026-10-14 18:17
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://download.koha-community.org/
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://www.cve.org/CVERecord?id=CVE-2024-28739
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://www.cve.org/CVERecord?id=CVE-2025-30076
134c704f-9b21-4f2e-91b3-4a467353bcc0https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Koha",
          "vendor": "Koha Community",
          "versions": [
            {
              "lessThan": "24.11.00",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "24.11.20",
              "status": "affected",
              "version": "24.11.00",
              "versionType": "custom"
            },
            {
              "lessThan": "25.05.15",
              "status": "affected",
              "version": "25.05.00",
              "versionType": "custom"
            },
            {
              "lessThan": "25.11.09",
              "status": "affected",
              "version": "25.11.00",
              "versionType": "custom"
            },
            {
              "lessThan": "26.05.04",
              "status": "affected",
              "version": "26.05.00",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"
    }
  ],
  "cveTags": [],
  "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 =\u003e 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."
    }
  ],
  "id": "CVE-2026-105106",
  "lastModified": "2026-10-14T18:17:23.040",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-105106",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-14T17:55:56.921737Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-14T08:17:03.587",
  "references": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674"
    },
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://download.koha-community.org/"
    },
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-28739"
    },
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-30076"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42674"
    }
  ],
  "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "type": "Secondary"
    }
  ]
}



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