Widely used Nexus Repository Manager with unauthenticated RCE and DB access; could disrupt DevOps pipelines and data integrity across industries.
CVE-2026-5189
Unauthenticated read/write DB and RCE via hard-coded creds in Nexus Repository Manager.
Is CVE-2026-5189 being exploited?
Not confirmed. CVE-2026-5189 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-2026-5189?
CVE-2026-5189 is rated Critical with a CVSS score of 9.2. 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-2026-5189?
Yes. A fix has been recorded for CVE-2026-5189. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-5189 affect?
CVE-2026-5189 affects Sonatype Nexus Repository Manager 3.x. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-5189?
Patch to fixed version; rotate credentials; restrict exposure; review binaryListener config
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthorized read/write of internal Nexus DB and OS command execution as Nexus process user.
Immediate action required
- affected>= 3.0.0 and < 3.71.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.