CVE-2026-23926

MediumCVSS 6.8/10Last modified Sep 18, 2026

Description

An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
May 6, 2026
Last modified
Sep 18, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-239276.5A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connectinCVE-2026-239286.8The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enablCVE-2026-239295.4Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filteriCVE-2026-23937.1A Server-Side Request Forgery (SSRF) vulnerability exists in MLflow versions prior to 3.9.0. The `_create_webhook()` function in `mlflow/serCVE-2026-239307.5An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to theCVE-2026-239314.3The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potentiaCVE-2026-239339.1In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the onlyCVE-2026-239346.5An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the FCVE-2026-239354.9A Zabbix administrator is able to read out of bounds memory by utilizing a flaw in script item/preprocessing (JavaScript) HttpRequest logic,CVE-2026-239376.5The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to potential loss of data integriCVE-2026-239384.9An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScriptCVE-2026-239397.5Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Store.Local
CVE-2026-23926: Medium severity, CVSS 6.8 | Vulnix