CVE catalog

CVE-2026-23934

An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential den

[CVE catalog]

Severity: Medium · CVSS 5.1CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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
Published: Aug 18, 2026, 1:17:21 PM UTC
Updated: Aug 18, 2026, 2:17:01 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.56% · Oct 25, 2026

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	zabbix	sid	`1:7.0.29+dfsg-2`	not affected
Debian	zabbix	forky	`1:7.0.29+dfsg-2`	not affected
Debian	zabbix	trixie	`1:7.0.22+dfsg-1~deb13u1`	not affected
Debian	zabbix	bookworm	`1:6.0.14+dfsg-1`	not affected
Cpe	zabbix	Not reported	`7.4.12`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	zabbix	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	zabbix	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	zabbix	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	zabbix	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Cpe	zabbix	cpe	Not reported	`7.4.12`	Not reported	NVD-CVE-2026-23934	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[zabbix-agent]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-agent2]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-frontend-php]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-java-gateway]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-mysql]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-pgsql]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-sqlite3]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-sender]Not affected
Source package: [zabbix]
Details (2)
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-server-mysql]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-server-pgsql]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-web-service]Not affected
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm

Observed: Oct 23, 2026, 9:38:45 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]