Enables disclosure of AD secrets (msKds-RootKeyData) and offline derivation of gMSA passwords, enabling domain compromise in Samba AD DC deployments used broadly across organizations.
CVE-2026-58222
LDAP injection + ACL bypass in Samba AD DC discloses AD attributes and gMSA secrets.
Is CVE-2026-58222 being exploited?
Not confirmed. CVE-2026-58222 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-58222?
CVE-2026-58222 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58222?
Not known from our data. No patch reference has been recorded for CVE-2026-58222, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-58222 affect?
CVE-2026-58222 affects Samba Active Directory Domain Controller (AD DC), Deployments using Group Managed Service Accounts (gMSA). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58222?
Apply vendor patch when available; restrict LDAP Compare, rotate gMSA secrets, audit AD access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated low-priv user can bypass ACLs via LDAP Compare injection to read AD attributes (e.g., msKds-RootKeyData), derive gMSA secrets, escalate privileges and compromise the domain.
Immediate action required