dbcve.org
Improper Privilege ManagementWeakness · CWE-269

CVE-2025-8107

MEDIUM · 6.3 CVSS v3.1 Published 2025-07-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
69/100
Remediation priority · Elevated
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In OceanBase's Oracle tenant mode, a malicious user with specific privileges can achieve privilege escalation to SYS-level access by executing carefully crafted commands. This vulnerability only affects OceanBase tenants in Oracle mode. Tenants in MySQL mode are unaffected.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

In OceanBase's Oracle tenant mode, a user with specific database privileges can execute crafted commands to escalate privileges to SYS-level access, the highest privileged user in Oracle. This is a privilege escalation vulnerability specific to Oracle mode tenants.

MitigationApply the vendor patch when available and ensure Oracle tenant mode users follow least-privilege principles. Consider additional monitoring for privilege escalation attempts in Oracle mode tenants.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Oracle tenant mode is in use
    Query OceanBase for tenant mode configuration: SELECT * FROM oceanbase.gv$tenant WHERE tenant_type='ORACLE'; or check tenant creation logs/config for tenant_type parameter set to 'ORACLE'.
    Affected if The environment uses Oracle mode tenants - the CVE only affects Oracle tenant mode, not MySQL mode.
  2. Check for users with database privileges in Oracle tenant
    In Oracle tenant, query: SELECT username, granted_role FROM dba_role_privs; SELECT username, privilege FROM dba_sys_privs; Look for non-SYS users with DBA, CONNECT, RESOURCE, or other elevated roles.
    Affected if Non-SYS users possess elevated database privileges (DBA, CONNECT, RESOURCE, etc.) that could be exploited for privilege escalation.
  3. Verify current SYS authentication configuration
    Check Oracle tenant authentication settings: SELECT * FROM dba_users WHERE username='SYS'; Review authentication type and account status.
    Affected if SYS account is accessible or improperly secured, allowing potential escalation to SYS-level access.
  4. Audit recent privilege escalation attempts
    Review OceanBase audit logs for Oracle tenant: Look for queries accessing SYS-owned objects, privilege grant operations, or authentication changes. Query: SELECT * FROM oceanbase.gv$sql_audit WHERE tenant_id IN (SELECT tenant_id FROM oceanbase.gv$tenant WHERE tenant_type='ORACLE') AND sql_text LIKE '%SYS.%';
    Affected if Audit logs show suspicious activity involving SYS schema access or privilege modifications in Oracle tenants.
  5. Check for vulnerable privilege configurations
    In Oracle tenant, check for any misconfigured stored procedures, roles, or database links that could allow privilege escalation: SELECT * FROM dba_procedures WHERE owner='PUBLIC'; SELECT * FROM dba_db_links;
    Affected if Public procedures, database links, or roles exist that could be manipulated for SYS privilege escalation.

A user is affected if they run OceanBase with Oracle tenant mode enabled and have non-SYS users with elevated database privileges that could be exploited to gain SYS-level access.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch when available and ensure Oracle tenant mode users follow least-privilege principles. Consider additional monitoring for privilege escalation attempts in Oracle mode tenants.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-8107 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-8107 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data