CVE-2026-23919
CVE-2026-23919 · Insufficient isolation of JavaScript (Duktape) execution context on Zabbix Server
This page contains facts from public vulnerability sources. Check the original advisory before updating.
For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information <a href='https://www.zabbix.com/documentation/7.4/en/manual/installation/known_issues#preprocessing-global-variables-are-unsafe'>in Zabbix documentation</a>.
CVSS 7.1 · High · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system · applications
Affected products and versions
zabbix
- Versions
- ≥ 6.0.0, ≤ 6.0.41: Affected; ≥ 6.0.42: Not affected (git)
- ≥ 7.0.0, ≤ 7.0.18: Affected; ≥ 7.0.19: Not affected (git)
- ≥ 7.2.0, ≤ 7.2.12: Affected; ≥ 7.2.13: Not affected (git)
- ≥ 7.4.0, ≤ 7.4.2: Affected; ≥ 7.4.3: Not affected (git)
Update to 6.0.42; Update to 7.0.19; Update to 7.2.13; Update to 7.4.3
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
- 1:7.0.29+dfsg-2~bpo13+1
- 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~bpo13+1
- Affected ranges
- ECOSYSTEM: < 1:7.0.22+dfsg-1~deb13u1
Update to 1:7.0.22+dfsg-1~deb13u1
zabbix Debian:14
- Versions
- 1:7.0.10+dfsg-2
- 1:7.0.22+dfsg-1~bpo13+1
- 1:7.0.22+dfsg-1~deb13u1
- Affected ranges
- ECOSYSTEM: < 1:7.0.22+dfsg-1
Update to 1:7.0.22+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:25.10
- Versions
- 1:7.0.10+dfsg-2
- 1:7.0.10+dfsg-2build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published