CVE-2026-23937 Host PSK extraction in Zabbix API
Medium 6.0
Published
Updated
Check this codebase for CVE-2026-23937 and fix it if it is affected.
What it is: CVE-2026-23937 is a medium-severity vulnerability in Zabbix Zabbix, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-23937 in the wild and no public exploit code.
Affected product: Zabbix Zabbix. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-23937/ (Markdown: https://insights.sbomify.com/CVE-2026-23937/index.md)
Authenticated users can extract host PSK keys via the Zabbix API, compromising data integrity and security.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-23937?
CVE-2026-23937 is a medium-severity vulnerability in Zabbix Zabbix, published on 18 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to potential loss of data integrity.
Weakness: CWE-203
Which versions are affected by CVE-2026-23937?
It affects 1 product.
Products include Zabbix Zabbix.
How do I fix CVE-2026-23937?
Apply the vendor's patch.
Is CVE-2026-23937 being exploited?
There is no known exploitation of CVE-2026-23937 in the wild and no public exploit code.
Other vulnerabilities in Zabbix Zabbix
Sources
Also known as DEBIAN-CVE-2026-23937, GHSA-9mqw-qc3x-x476, UBUNTU-CVE-2026-23937.