CVE-2026-54358: MISP organization administrators can target site administrator accounts for password reset
An incorrect authorization vulnerability in MISP allows an organization administrator to target site administrator accounts belonging to the same organization through the administrative email functionality. The affected code restricted organization administrators to users within their own organization, but did not exclude accounts assigned a site administrator role from recipient queries. As a result, an organization administrator could perform privileged account-management actions, such as initiating a password reset workflow, against a higher-privileged site administrator account in the same organization.
Successful exploitation may allow an authenticated organization administrator to interfere with or potentially take over a site administrator account, resulting in privilege escalation and full compromise of the MISP instance’s confidentiality, integrity, and availability.
Attack prerequisites: The attacker must be authenticated as an organization administrator in the same organization as a site administrator account.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Ensure recipient queries for the administrative email workflow explicitly exclude accounts that have the site administrator role so organization administrators cannot target site administrators.
MISP administrative email functionality recipient filtering = exclude accounts assigned the site administrator role - Configuration
Temporarily disable or restrict the administrative email/password-reset functionality for organization administrators until the recipient-filtering issue is remediated.
MISP administrative email functionality administrative email capability for organization administrators = disabled or limited - Compensating control
Restrict organization-administrator privileges to trusted users only (reduce number of org admins) and limit access to MISP management interfaces via network controls (firewall/ACL) to trusted IPs or management networks until the issue is fixed.
- Operational
Audit logs for administrative-email and password-reset activity for signs of misuse, and rotate/reset credentials for site administrator accounts if abuse is suspected or to be cautious following discovery of the issue.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-54358?
The severity of CVE-2026-54358 is rated as high with a CVSS score of 7.5.
How do I fix CVE-2026-54358?
To fix CVE-2026-54358, ensure that only authorized organization administrators can perform password resets on site administrator accounts by applying the latest patches from the MISP Project.
What does CVE-2026-54358 target?
CVE-2026-54358 targets the administrative email functionality, allowing organization administrators to improperly reset passwords for site administrator accounts within the same organization.
Who is affected by CVE-2026-54358?
CVE-2026-54358 affects MISP organizations where the administrative roles are not properly restricted, potentially compromising site administrator accounts.
When was CVE-2026-54358 published?
CVE-2026-54358 was published on June 12, 2026.