CVE-2026-112188 MISP Server Settings Lookup Exposes Sensitive Configuration Data via Branch Name Resolution
Authenticated users can retrieve sensitive server configuration secrets, including passwords and API keys, by exploiting a flaw in the settings lookup mechanism.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112188?
CVE-2026-112188 is a high-severity vulnerability in MISP, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
MISP contains a vulnerability in its server settings lookup mechanism that allows an authenticated user to retrieve sensitive configuration data that should have been redacted.
The settings lookup function resolves a dotted setting name to a node in the configuration tree. When a branch name (such as Security, MISP, or Plugin) is supplied instead of a specific leaf setting, the function returns the entire sub-tree. Because a branch node does not carry a redaction flag, the redaction check in the settings retrieval endpoint is bypassed, and the full branch contents are returned to the caller. This exposes sensitive values including the security salt, Redis connection passwords, and plugin API keys.
A second endpoint that edits server settings similarly reads the entire configuration store when a branch name is resolved, returning all settings to the caller.
The impact is disclosure of sensitive server configuration secrets to any user who can access the server settings endpoints.
Affected versions: <2.5.48.
Which versions are affected by CVE-2026-112188?
How do I fix CVE-2026-112188?
No fix has been published for CVE-2026-112188 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112188 being exploited?
There is no known exploitation of CVE-2026-112188 in the wild and no public exploit code.
Sources
Also known as GHSA-mp6x-6c2r-xcxv.