DEBIAN-CVE-2026-23920

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Source
https://security-tracker.debian.org/tracker/CVE-2026-23920
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23920.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-23920
Upstream
  • CVE-2026-23920
Published
2026-03-24T19:16:49.557Z
Modified
2026-03-29T17:00:31.211099Z
Severity
  • 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.

References

Affected packages

Debian:11 / zabbix

Package

Name
zabbix
Purl
pkg:deb/debian/zabbix?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:5.*
1:5.0.8+dfsg-1
1:5.0.14+dfsg-1~bpo11+1
1:5.0.14+dfsg-1
1:5.0.17+dfsg-1~bpo11+1
1:5.0.17+dfsg-1
1:5.0.44+dfsg-1+deb11u1
1:5.0.45+dfsg-1+deb11u1
1:5.0.46+dfsg-1+deb11u1
1:5.0.47+dfsg-0+deb11u1
1:6.*
1:6.0.3+dfsg-1
1:6.0.6+dfsg-1
1:6.0.7+dfsg-1
1:6.0.7+dfsg-2~bpo11+1
1:6.0.7+dfsg-2
1:6.0.7+dfsg-3
1:6.0.8+dfsg-1
1:6.0.9+dfsg-1
1:6.0.9+dfsg-1.1
1:6.0.10+dfsg-1
1:6.0.13+dfsg-1
1:6.0.14+dfsg-1~bpo11+1
1:6.0.14+dfsg-1
1:6.0.23+dfsg-1~bpo12+1
1:6.0.23+dfsg-1
1:6.0.24+dfsg-1
1:6.0.25+dfsg-1
1:6.0.29+dfsg-1
1:7.*
1:7.0.0+dfsg-1
1:7.0.0+dfsg-2~bpo12+1
1:7.0.0+dfsg-2
1:7.0.1+dfsg-1~bpo12+1
1:7.0.1+dfsg-1
1:7.0.2+dfsg-1~bpo12+1
1:7.0.2+dfsg-1
1:7.0.3+dfsg-1
1:7.0.5+dfsg-1~bpo12+1
1:7.0.5+dfsg-1
1:7.0.6+dfsg-1
1:7.0.9+dfsg-1~bpo12+1
1:7.0.9+dfsg-1
1:7.0.10+dfsg-1
1:7.0.10+dfsg-2
1:7.0.22+dfsg-1~bpo13+1
1:7.0.22+dfsg-1~deb13u1
1:7.0.22+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23920.json"

Debian:12 / zabbix

Package

Name
zabbix
Purl
pkg:deb/debian/zabbix?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:6.*
1:6.0.14+dfsg-1
1:6.0.23+dfsg-1~bpo12+1
1:6.0.23+dfsg-1
1:6.0.24+dfsg-1
1:6.0.25+dfsg-1
1:6.0.29+dfsg-1
1:7.*
1:7.0.0+dfsg-1
1:7.0.0+dfsg-2~bpo12+1
1:7.0.0+dfsg-2
1:7.0.1+dfsg-1~bpo12+1
1:7.0.1+dfsg-1
1:7.0.2+dfsg-1~bpo12+1
1:7.0.2+dfsg-1
1:7.0.3+dfsg-1
1:7.0.5+dfsg-1~bpo12+1
1:7.0.5+dfsg-1
1:7.0.6+dfsg-1
1:7.0.9+dfsg-1~bpo12+1
1:7.0.9+dfsg-1
1:7.0.10+dfsg-1
1:7.0.10+dfsg-2
1:7.0.22+dfsg-1~bpo13+1
1:7.0.22+dfsg-1~deb13u1
1:7.0.22+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23920.json"

Debian:13 / zabbix

Package

Name
zabbix
Purl
pkg:deb/debian/zabbix?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:7.0.22+dfsg-1~deb13u1

Affected versions

1:7.*
1:7.0.10+dfsg-2
1:7.0.22+dfsg-1~bpo13+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23920.json"

Debian:14 / zabbix

Package

Name
zabbix
Purl
pkg:deb/debian/zabbix?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:7.0.22+dfsg-1

Affected versions

1:7.*
1:7.0.10+dfsg-2
1:7.0.22+dfsg-1~bpo13+1
1:7.0.22+dfsg-1~deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23920.json"