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CVE-2026-23938

CVE-2026-23938 · Server DoS via JavaScript preprocessing or script items

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.

CVSS 2.1 · Low · EPSS 0.4% · Fix available

Published
Updated

Stack: system · applications

Affected products and versions

  • zabbix

    Versions
    • ≥ 6.0.0, ≤ 6.0.46: Affected; ≥ 6.0.47: Not affected (git)
    • ≥ 7.0.0, ≤ 7.0.26: Affected; ≥ 7.0.27: Not affected (git)
    • ≥ 7.4.0, ≤ 7.4.10: Affected; ≥ 7.4.11: Not affected (git)

    Update to 6.0.47; Update to 7.0.27; Update to 7.4.11

  • zabbix Debian:12

    Versions
    • 1:6.0.14+dfsg-1
    • 1:6.0.23+dfsg-1
    • 1:6.0.23+dfsg-1~bpo12+1
    • 1:6.0.24+dfsg-1
    • 1:6.0.25+dfsg-1
    • 1:6.0.29+dfsg-1
    • 1:7.0.0+dfsg-1
    • 1:7.0.0+dfsg-2
    • 1:7.0.0+dfsg-2~bpo12+1
    • 1:7.0.1+dfsg-1
    • 1:7.0.1+dfsg-1~bpo12+1
    • 1:7.0.10+dfsg-1
    • 1:7.0.10+dfsg-2
    • 1:7.0.2+dfsg-1
    • 1:7.0.2+dfsg-1~bpo12+1
    • 1:7.0.22+dfsg-1
    • 1:7.0.22+dfsg-1.1
    • 1:7.0.22+dfsg-1~bpo13+1
    • 1:7.0.22+dfsg-1~deb13u1
    • 1:7.0.27+dfsg-1
    • 1:7.0.29+dfsg-1
    • 1:7.0.29+dfsg-2
    • 1:7.0.3+dfsg-1
    • 1:7.0.5+dfsg-1
    • 1:7.0.5+dfsg-1~bpo12+1
    • 1:7.0.6+dfsg-1
    • 1:7.0.9+dfsg-1
    • 1:7.0.9+dfsg-1~bpo12+1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Debian:13

    Versions
    • 1:7.0.10+dfsg-2
    • 1:7.0.22+dfsg-1
    • 1:7.0.22+dfsg-1.1
    • 1:7.0.22+dfsg-1~bpo13+1
    • 1:7.0.22+dfsg-1~deb13u1
    • 1:7.0.27+dfsg-1
    • 1:7.0.29+dfsg-1
    • 1:7.0.29+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Debian:14

    Versions
    • 1:7.0.10+dfsg-2
    • 1:7.0.22+dfsg-1
    • 1:7.0.22+dfsg-1.1
    • 1:7.0.22+dfsg-1~bpo13+1
    • 1:7.0.22+dfsg-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 1:7.0.27+dfsg-1

    Update to 1:7.0.27+dfsg-1

  • zabbix Ubuntu:Pro:14.04:LTS

    Versions
    • 1:2.0.6+dfsg-1ubuntu2
    • 1:2.2.0+dfsg-1ubuntu1
    • 1:2.2.0+dfsg-6ubuntu1
    • 1:2.2.1+dfsg-1ubuntu3
    • 1:2.2.2+dfsg-1ubuntu1
    • 1:2.2.2+dfsg-1ubuntu1+esm1
    • 1:2.2.2+dfsg-1ubuntu1+esm3
    • 1:2.2.2+dfsg-1ubuntu1+esm4
    • 1:2.2.2+dfsg-1ubuntu1+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:Pro:16.04:LTS

    Versions
    • 1:2.4.6+dfsg-1
    • 1:2.4.7+dfsg-1
    • 1:2.4.7+dfsg-2
    • 1:2.4.7+dfsg-2ubuntu2
    • 1:2.4.7+dfsg-2ubuntu2.1
    • 1:2.4.7+dfsg-2ubuntu2.1+esm1
    • 1:2.4.7+dfsg-2ubuntu2.1+esm2
    • 1:2.4.7+dfsg-2ubuntu2.1+esm3
    • 1:2.4.7+dfsg-2ubuntu2.1+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:Pro:18.04:LTS

    Versions
    • 1:3.0.7+dfsg-3
    • 1:3.0.12+dfsg-1
    • 1:3.0.12+dfsg-1ubuntu0.1~esm1
    • 1:3.0.12+dfsg-1ubuntu0.1~esm2
    • 1:3.0.12+dfsg-1ubuntu0.1~esm3
    • 1:3.0.12+dfsg-1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:Pro:20.04:LTS

    Versions
    • 1:4.0.4+dfsg-1build2
    • 1:4.0.4+dfsg-1build3
    • 1:4.0.11+dfsg-1
    • 1:4.0.14+dfsg-1
    • 1:4.0.15+dfsg-1
    • 1:4.0.16+dfsg-1
    • 1:4.0.16+dfsg-1build1
    • 1:4.0.17+dfsg-1
    • 1:4.0.17+dfsg-1ubuntu0.1~esm1
    • 1:4.0.17+dfsg-1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:Pro:22.04:LTS

    Versions
    • 1:5.0.8+dfsg-1build1
    • 1:5.0.14+dfsg-1
    • 1:5.0.17+dfsg-1
    • 1:5.0.17+dfsg-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:26.10

    Versions
    • 1:7.0.22+dfsg-1
    • 1:7.0.22+dfsg-1.1
    • 1:7.0.22+dfsg-1.1build1
    • 1:7.0.22+dfsg-1.1build2
    • 1:7.0.27+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • zabbix Ubuntu:26.04:LTS

    Versions
    • 1:7.0.10+dfsg-2build1
    • 1:7.0.22+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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